Cross-platform app development companies help businesses design and build mobile solutions that are compatible with various operating systems and platforms. We ranked the top local and global providers based on client reviews, portfolios, team size and more. Filter results to pick the right partner for your project today!
Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.
Product Design & Engineering for Banks, Fintechs, and Enterprise Platforms
Alty specializes in high-stakes mobile app development for fintech and banking, uniting strategy, design, and engineering under a single senior lead per engagement. A 4x Red Dot Award winner, it has built products used by 60M+ active users across 40+ markets...
Top Services:
- Mobile App Development
- Design Services
- Software Development
- Web Design
- UI/UX Design
- Show more
- Location
- Cascais, Portugal
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $75/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 22 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAlty Services
Data sourced from the agency's DesignRush profileVISA Mastercard Raiffeisen Monobank GTBank PrivatBank ABA Bank CBH Bank Renovite Corezoid
Alty Reviews & Testimonials

Mobile App Development Review from Ewa Koltunczyk (Karabon)
I recently had the pleasure of working with Alty to develop our mobile app. We needed a developer who was able to translate my vision and provide technical guidance. The experience has been nothing short of outstanding. From the initial consultation to the final product, Alty's professionalism, expertise, and dedication have exceeded my expectations. Alty has demonstrated a deep understanding of mobile app development and was willing to go the extra mile. Their ability to translate my ideas into a seamless, user-friendly, and visually appealing app is truly impressive

Mobile App Development Review from Adam Kubas
Alty did excellent work for our department. The team prepared a high-quality and easy-to-understand development roadmap for Virtual Academy of Bioinformatics. Their positive attitude and willingness to learn made them a pleasure to work with. Overall, I highly recommend Alty for any development role. They have the skills, dedication, and professionalism to excel. Thank you for developing our app.

Web Development Review from Rajesh Kasturirangan
The team at Alty is indeed filled with tech engineers and assiduous individuals with excellent software development skills! The end product work had minimal bugs. Alty has exceptional communication skills, identifies top talent, and goes above and beyond to ensure a smooth development.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Lionwood.software
VerifiedVerified by the DesignRush team for authenticity and credibility.Find the perfect solution
Lionwood.software is a software development company founded in 2017 that builds digital products through long-term, collaborative partnerships with organizations across Europe and North America. The company combines strong engineering expertise with a human-centered approach focused on transparency,...
Top Services:
- Software Development
- Mobile App Development
- Web Development
- Blockchain
- Staff Augmentation
- Show more
- Location
- Newark, Delaware
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 19 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsLionwood.software Services
Data sourced from the agency's DesignRush profileBlue Fetch Into University Partnerships DS Apteka Dizmo Inc Lingon Certificates AB
Lionwood.software Reviews & Testimonials

Chatbot Solution Review from Daria Hlavcheva
KeenEthics onboarded Lionwood Software to develop an AI-powered chatbot that could analyze photos of vehicle damage and provide an estimated repair cost for insurance company. The project focused on applying AI to a traditionally manual part of the insurance claims process. The solution needed to interpret car damage from uploaded images, identify relevant damage, and translate the analysis into a cost estimate that could support faster and more consistent claims assessment. Lionwood Software took ownership of the AI development and worked closely with the KeenEthics team to align the solution with the product requirements and insurance use case. Their team demonstrated a strong understanding of both the technical challenges of image-based damage assessment and the business logic behind insurance claims. They were proactive in discussing requirements, clarifying edge cases, and addressing dependencies throughout the development process. The resulting solution helped automate an important part of the vehicle damage assessment workflow, reducing the need for purely manual evaluation and creating a foundation for faster claims processing. Lionwood Software proved to be a reliable technology partner with the expertise to work on AI-driven products where technical implementation needs to be closely aligned with real-world business requirements.
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.Net Review from Anonymous
We outsourced application development work to this team. They proved to be reliable, precise, and competent, consistently delivering on time.

Software Development Review from Anonymous
Fenix-plus appreciates Lionwood.software for delivering a comprehensive CRM system that effectively manages key operations, including inventory and staff management. The system has brought notable time and cost savings while providing valuable insights into employee and process performance. Lionwood.software’s dedication to regular updates and high-quality delivery within budget has been highly appreciated.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsThe Top 1% AI Latin American Talent
We connect forward-thinking U.S. companies with exceptional AI driven top 1% AI driven Latin American engineers...
Top Services:
- Staff Augmentation
- Software Development
- IT Services
- Mobile App Development
- AI Development
- Show more
- Location
- Buenos Aires, Argentina
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $53/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 14 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsBEON.tech Services
Data sourced from the agency's DesignRush profileLivara AutoFi Lighter Capital SimplePractice CookUnity Kiavi Acoustic Evisort CocoDelivery SpineZone
BEON.tech Reviews & Testimonials

Software Development Review from Undisclosed
BEON.tech has been hired by a navigation app to provide software development services. The team has been tasked with building a performant and stable enterprise solution for the client's customers. The team has hit milestones on time, communicated via in-person and virtual meetings, email, and messaging apps, and shown great talent.

Recruiting Review from Anonymous
They were able to meet the deadlines and were responsive to deliverables. They have a large talent pool and network and can fill needs promptly. They are always responsive and are willing to help out to resolve any issues.

Software Development Review from Gary Bogachkov
The Beon Team was instrumental in building several versions of our event workflow-management platform, web registration, and customer experience web app - as well as our core event websites.An overall great experience and I consider them as an integral part of my team.Great culture and communication. Their engineers sincerely want to always improve and deliver a high-quality product.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsIn a world full of sunsets, we are the Northern light.
Kindgeek is an AI-native fintech product engineering company. We help licensed fintechs, payment companies, neobanks, and global enterprises build, launch, and scale regulated financial products...
Top Services:
- Software Development
- Web Development
- Mobile App Development
- Product Design
- UI/UX Design
- Show more
- Location
- Lviv, Ukraine
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 62 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsKindgeek Services
Data sourced from the agency's DesignRush profileJaja University of Basel eduki HyperJar The Interface Financial Group Grafter Hive Unique Digital Puls TUI
Kindgeek Reviews & Testimonials

Outsourcing Review from Pavlo Ivanishchin
Our collaboration with Kindgeek and their dedicated expertise in product development services, combined with our own specialized IOPS team in DevOps services, has been extensive. We've tackled a wide array of finance projects, both internal and external, which have encompassed diverse areas, including the development of leading fintech solutions for various financial services. Working closely together, we've harnessed our collective strengths and expertise, consistently delivering top-notch services that showcase our powerful synergy.Kindgeek's project management delivered items on time and promptly responded to our needs. They were adaptive, communicated effectively, and demonstrated proactive problem-solving skills, contributing significantly to our project's success.What we found most impressive and unique about Kindgeek was their unwavering professionalism, focus during meetings, and clear sense of accountability. Their commitment to delivering results and transparent communication set them apart in our eyes.

Software Development Review from Iryna Povkh
A people-oriented company with great social responsibility projects and proficiency in Product Design and Development and Digital Transformation Services.

IT Services Review from Dan Hnatkovskyy
I've had an excellent experience with the KindGeek team. Its project management is impeccable: processes are polished and in place, the desire to help their partners and clients is always there, and managers pay attention to client requirements. The team's engagement met the expectations, and their willingness to help and contribute with their vision to our product was impressive. They established a seamless workflow through a customer-centric culture of communication. (Verified via email)
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsMobile & Web Software Dev Team
Kernelics is a boutique web and mobile software development firmfor startups and tech companies...
Top Services:
- Mobile App Development
- Staff Augmentation
- Product Design
- Software Development
- eCommerce Development
- Show more
- Location
- London, United Kingdom
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 18 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsKernelics Services
Data sourced from the agency's DesignRush profileSmall Business Industry Fintech Industry Marketing Industry
Kernelics Reviews & Testimonials

Staff Augmentation Review from Dzmitry Novikau
I worked with Kernelics on a crypto project where we needed help with both design and development. From the beginning, the team was easy to communicate with and clearly understood what we were trying to build.The designer improved our initial ideas by making the user experience more intuitive. They suggested better ways to structure the navigation and user flow, which helped reduce friction and made the product easier to use.We also brought in one of their developers, who worked alongside our existing team member. They collaborated well, completed the work on time, and handled some challenging parts of the exchange functionality without any issues.Overall, Kernelics delivered quality work, stayed within budget, and were professional throughout the process. I’d recommend them to others looking for a reliable design and development partner, especially for crypto or fintech projects.

Web Development Review from Stsiapan Kolesau
I CEO at the construction company specializing in modular buildings and their components. With years of experience and multiple projects, we decided to expand our online presence beyond our two existing landing pages. We needed a corporate portal to showcase products, manage content easily, and dynamically calculate product costs.On a recommendation, we chose Kernelics, and their organized approach and clear task division impressed us from the start. They began with an in-depth analysis of our needs and a competitive review. For the design, we requested a minimalist style, and the results were spot on, requiring only minor tweaks to meet our expectations.For development, Kernelics selected React, Next.js, and TypeScript, with Strapi for the admin panel. They also integrated Google Sheets to handle dynamic price calculations, enabling instant updates on the site by simply modifying the spreadsheeta feature weve found incredibly useful.Now, two years later, the portal continues to support our growth, and were planning new developments for our main site.Kernelics stood out for their transparent approach and professionalism at every stage, and I confidently recommend them to anyone seeking a reliable web development partner.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsUK's #1 Mobile App Development Company
We help clients achieve transformative digital experiences through App Development. Stakk’s unparalleled skills in iOS, Android, Flutter, and React Native consistently deliver impressive results for brands like LNER Trains and The British Museum. Let’s elevate your product with expert design, management...
Top Services:
- Mobile App Development
- Software Development
- AI Development
- UI/UX Design
- Show more
- Location
- London, United Kingdom
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 6 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsStakk Services
Data sourced from the agency's DesignRush profileLNER The British Museum Safestyle Sotheby's MyCoach Nivoda Gigl Lapland Tracker Volopa
Stakk Reviews & Testimonials

Mobile App Development Review from Natasha Beavis
We worked with Stakk to develop our mobile revision app for both iOS and Android, and we couldn't be happier with the results. From the first meeting, their team demonstrated exceptional professionalism, technical expertise, and a genuine commitment to bringing our vision to life.They took the time to understand our goals, offered valuable insights to improve user experience, and delivered a sleek, high-performance app that exceeded our expectations. Communication was seamless throughout the entire process, updates were timely, feedback was welcomed and implemented quickly, and every milestone was met on schedule.Post-launch, they've continued to be a reliable partner, providing support and updates as needed.If you're looking for a top-tier mobile app development company, look no further than Stakk. They're a rare find in the tech world and we would highly recommend them.

Software Development Review from Manfred Olbrich
Stakk has delivered a high-quality product that we are pleased with. Their hybrid model offers great value for money and grants clients to strong technical capacity but also direct contact with management in the UK which really helps with transparency, communication, and ensuring the project is being delivered on thime. The team suggests improvements and meets most deadlines.At the start of the project, I drafted a huge product requirements document that included all the user journeys, my vision for the brand, including the colors and the rest of the brand, and the desired functionalities. I gave this document to Stakk, and they've executed the requirements.

Mobile App Development Review from Ben Smith
We partnered with Stakk to build the mobile platform for #itsfinea unique, flexible weight loss concept launched pre-seed. From the outset, their team, led by Girish and Vikas, brought impressive technical and creative capabilities to the table. Communication was smooth throughout, whether through shared Slack channels or direct contact with the project manager.We collaborated closely with their UX/UI designer in daily stand-ups, and bi-weekly check-ins with the PM ensured the project stayed tightly aligned with our goals. Their process-driven approach matched ours wellevery phase was mapped out clearly, and any changes we needed to make along the way were actioned quickly and without fuss.Stakks professionalism, attention to detail, and focus on client success stood out. Their structured way of working gave us real confidence in the final product. We strongly recommend them to any founder or team looking for a trusted, high-performing partner to bring their product to life.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsWe Help You Add Wallets, Payments & Digital Assets to Your Product
ND Labs builds self-custodial applications and wallet infrastructure for businesses working with digital assets.We help companies launch wallets, add wallet functionality to existing products, build stablecoin payment infrastructure, and develop custom blockchain and Web3 products...
Top Services:
- Blockchain
- Software Development
- Mobile App Development
- IT Services
- Show more
- Location
- Warsaw, Poland
- Number of Employees
- Under 49
- Average Hourly Rate
- $45/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 6 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsND Labs Services
Data sourced from the agency's DesignRush profilePredictable Sourcing BLER Systems Mirfin Valuation Services RG
ND Labs Reviews & Testimonials

Mobile App Development Review from Nemanja Sindjelic
My project idea was to create a non custodial mobile crypto wallet that allows users to manage their assets across multiple blockchains, including Bitcoin, Ethereum, Polygon, and Solana. The wallet app had to provide an intuitive and seamless experience for both beginners and advanced users, ensuring secure transactions and real-time updates. And ND Labs did it great! A white label solution by ND Labs offers a minimalistic UI, multi-network support, and advanced transaction fee optimization while maintaining high security standards with biometric authentication and seed phrase protection.Additionally the wallet well addresses the common challenges in the crypto space: high transaction fees, security risks, and complex user experience. The wallet simplifies crypto asset management and provides automated gas fee calculations, real-time balance updates, and push notifications for transactions.My opinion is that these guys are really professional. I definitely recommend working with ND Labs (Poland) to anyone who is looking for a white label solution for their crypto wallets.

Blockchain Review from Kherel Kechil
Working with ND Labs has been an outstanding experience. They demonstrated exceptional expertise in both AI and blockchain technologies. We engaged ND Labs for two complex projects an AI-driven coaching platform and a cryptocurrency platform and they delivered beyond our expectations on both fronts. The teams deep understanding of artificial intelligence and blockchain was evident from the start, and they were able to anticipate and address challenges swiftly. Their timely delivery, responsiveness, and commitment to quality have made our collaboration smooth and highly productive. Were thrilled with the results and look forward to future projects together.

Software Development Review from Orkhan Mammadov
I had a great experience working with ND Labs over the past several years. The team fostered a collaborative environment where ideas were welcomed, and I gained valuable experience working on diverse projects with clients from multiple industries. I especially appreciated the emphasis on creative innovation and the supportive management that encouraged growth and learning.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsLampa is a Comfy Software Development
Lampa delivers high-quality outsourcing services and custom software solutions that drive innovation and business success in today's competitive digital landscape. We are helping to launch start-ups ! We are developing 20+ software solutions every year. Our projects reached more than 12 000 000 downloads...
Top Services:
- Web Development
- Mobile App Development
- Software Testing
- UI/UX Design
- IT Services
- Show more
- Location
- Vinnytsia, Ukraine
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 24 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsLampa Software Services
Data sourced from the agency's DesignRush profileDogiz 1+1 Media Virgin Radio LetyShops Audiokitab Crypto Crew
Lampa Software Reviews & Testimonials
Stu Da's Review Sourced from Google
If you need to develop a high-quality mobile application, then this is the place for you. They do it well (1+1 and LetyShops did not complain at all) and maintain an excellent balance of price and quality.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsVetted Devs On-Demand. Scale Team Fast, Risk-Free.
Hivex is an outstaffing company that offers a full software development lifecycle, from discovery to quality assurance. Our team of experts focuses on technology-intensive industries and stays up-to-date with the latest IT trends, providing the best solutions for companies worldwide...
Top Services:
- Software Development
- Staff Augmentation
- DevOps Consulting
- AI Development
- Blockchain
- Show more
- Location
- Miami, Florida
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $49/hr
- Minimal Budget
- $25,000 - $50,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsHivex Services
Data sourced from the agency's DesignRush profileLegarithm Equeum Logicom
Hivex Reviews & Testimonials

Software Development Review from Margaret N.
It was a pleasure working with Hivex. They quickly grasped the scope of our project and provided highly skilled developers within days. These engineers were efficient and integrated smoothly into our team. They built a robust remote work system that significantly improved our team's collaboration and productivity. The whole process was smooth, and the results were exactly what we needed.

Software Development Review from Olena Shabunina
We needed to quickly expand our dev team to build out a new feature set, and Hivex helped us find and bring on skilled remote developers to make that happen. The devs hit every deadline we set, sometimes even early. If we needed changes or had questions, they were super responsive - usually got back to us within a couple hours.

Software Development Review from Isammara Lourenço
We had a temporary gap in our technical team due to some transitions, and we needed to keep our development momentum going strong. Hivex provided us with skilled developers who seamlessly integrated into our team. They had the expertise we needed and filled the gap until we made permanent hires. Our collaboration with Hivex made sure our projects kept going without delay, we didn't lose our development momentum, and there wasn't any disruption. It was a huge help during a challenging time.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsYour Partners in Success.
Quest Global Technologies is a global leader in development & consultation of cutting-edge Blockchain, Metaverse, AR/VR, QA, Automation, Salesforce & Web3 advancements...
Top Services:
- Blockchain
- AI Development
- Digital Marketing
- IT Services
- Software Testing
- Show more
- Location
- Indore, India
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 6 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsQuest Global Technologies Ltd Services
Data sourced from the agency's DesignRush profileRadioShack Shiba Inu coin Rowan Energy Taboo Token Yuse Token
Quest Global Technologies Ltd Reviews & Testimonials

Mobile App Development Review from Crystal Heetai
We hired Quest Global to help build our technical infrastructure from scratch, including a customized blockchain solution, mobile and web app development, and an admin panel. They provided valuable feedback and questioning to direct us and set up the right infrastructure. Overall, I'm satisfied with their work and would highly recommend them.

Mobile App Development Review from Amy DeFaveri
Another company had started the project, so Quest Global picked it up, improved it, and completed it. They did 90%95% of the project. They had all the skills we needed, good technical expertise, reasonable pricing, and they could deliver the project on time. All in all, they were a boutique developing company wed work with the decision-makers and get a high level of service.

IoT Review from Paul Driedger
We have been thoroughly impressed with Quest Global Technologies Ltd and their innovative AI solutions for the railroad industry. From predictive maintenance to real-time performance analytics, their team has truly transformed our operations. Their in-depth understanding of the industry's challenges, combined with their advanced technological capabilities, allowed them to tailor solutions that have significantly improved our efficiency and safety.The integration of AI tools has led to optimized train scheduling, minimized downtime, and more accurate decision-making, directly impacting our bottom line. Moreover, Quest Global Technologies Ltd provided continuous support and expert advice throughout the project, ensuring a seamless implementation.The professionalism, expertise, and dedication of their team make them a standout partner. If you're looking for AI solutions that bring real, measurable improvements, we highly recommend Quest Global Technologies Ltd.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsWorld-class Branding And Design
Mission Control is a new kind of branding and design agency, born in the AI age and built for ambitious early-stage companies. We're part of Clay, the team behind brands like Slack, Meta, and Coinbase. We've helped startups grow from seed rounds to unicorn status, so we know what it takes to build a brand...
Top Services:
- Branding
- Logo Design
- Design Services
- Web Design
- UI/UX Design
- Show more
- Location
- San Francisco, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 4 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsMission Control Company Services
Data sourced from the agency's DesignRush profileSlack Discover Snapchat Sky Fooji Tipalti Age1 ADP Spark
Mission Control Company Reviews & Testimonials
Conor Brennan-Burke's Review Sourced from Google
Mission Control is the best hacker house in SF, building companies and creating the future for 10+ yearsNOT A SEX CLUB (that's a different organization in Oakland)
Reynolds Tang-Smith's Review Sourced from Google
11/10 far exceeded expectationsa space to dream and execute with other humans you truly enjoy spending time with - MC is more than just a hacker house 💭🏡🌎🚀💗
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsUK-based bespoke software development company
Appdrawn is a multi-award winning bespoke software development company based in London and Barcelona. We specialise in a consultancy led approach, delivering high quality bespoke digital platforms, business systems, progressive web apps (PWAs) and mobile apps...
Top Services:
- Software Development
- Mobile App Development
- Web Development
- UI/UX Design
- IoT
- Show more
- Location
- Watford, United Kingdom
- Number of Employees
- Under 49
- Average Hourly Rate
- $99/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 8 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAppdrawn Services
Data sourced from the agency's DesignRush profileThe Kindness of Strangers Oxford International Imagine Property Group Airlinen Aspire Customer Communication Services Renteq Highways HSM (Highway Safety Management) Beds & Herts LMC
Appdrawn Reviews & Testimonials
Mathew Neville's Review Sourced from Google
I've worked with many software development companies over the years and AppDrawn are comfortably the best delivery partners (huge apologies to everyone else...)The team's ability to add value into almost every area really creates a shared sense of ownership and partnership.Another big strength is that they go beyond wireframing and into basic design at an early stage which really helps decision making for non-technical peole like me!
Ray White's Review Sourced from Google
I was looking for a company to help with a live calendar system that was visible to several operators who were out on the road. Any updates needed to be in real time across the board. The team at AppDrawn came up with an off the shelf product. They set the system to suit our needs and provided training to all users. The service was 1st class and extremely reasonable. AppDrawn went out of their way to cater for our needs. Brilliant!Ray White Oven Wizards
Collin van der Nest's Review Sourced from Google
We have a good working relationship with AppDrawn and have referred them to our clients and the work delivered by them is of the highest standard. They saved one of our clients a large amount of time and money working with them to develop a streamlined system. We have no hesitation in recommending AppDrawn.CollinDirectorcollheath IT
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsCrafting Custom Software & DevOps Outsourcing Solutions Since 2009.
We build AI-accelerated software products faster, smarter, and built to scale. From LLM integrations to full-stack delivery, our teams ship real value. Together with you.Were Valletta.Software a software development company where human engineers and AI work side by side to build faster, smarter...
Top Services:
- AI Development
- Mobile App Development
- Software Development
- Staff Augmentation
- Web Design
- Show more
- Location
- Cospicua, Malta
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $44/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 8 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsValletta Software Development Services
Data sourced from the agency's DesignRush profileVelocity 42 FOR Partnership Ltd Lumenis

Z1 Digital Studio
Award WinnerRecipient of a Best Design Award for outstanding work.We take digital products from zero to one
We are one of the world's top digital product studios. A team of 90+ experts creating memorable designs, scalable architectures, and future-proof code for an easy transition to the next phase of your project...
Top Services:
- UI/UX Design
- Branding
- Web Design
- Logo Design
- Design Services
- Show more
- Location
- Seville, Spain
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $125/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 1 Project Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsZ1 Digital Studio Services
Data sourced from the agency's DesignRush profileMarble Mentor Spaces Makara Oatly
Software & Enterprise Solutions.
Ultimate Systems develops dependable, custom-built backend systems, web, and mobile applications that enhance business operations worldwide. Our bespoke IT solutions are designed to meet your unique business needs, ensuring optimal performance and growth...
Top Services:
- UI/UX Design
- eCommerce Development
- Software Testing
- AI Development
- Blockchain
- Show more
- Location
- Krakow, Poland
- Number of Employees
- Under 49
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 4 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsUltimate Systems Services
Data sourced from the agency's DesignRush profileKamaz Regamet Academy of Fine Arts in Krakow Polin Museum of the History of Polish Jews Schulz Brand Friendly Uniprofil Znak Free Walkative Tour Matras
Ultimate Systems Reviews & Testimonials
michał czeluśniak's Review Sourced from Google
We had the pleasure of partnering with Ultimate Systems to bring our vision to life for Fabryka Magika's online presence. As a company dedicated to spreading positivity and appreciation through unique gadgets, it was crucial for us to find a web development partner who could effectively convey our message to our audience. Ultimate Systems exceeded our expectations by delivering a visually stunning and user-friendly website that perfectly encapsulated Fabryka Magika's ethos. Their expertise in implementing advanced functionalities ensured seamless transactions and an enhanced shopping experience for our customers. Additionally, Ultimate Systems' commitment to understanding our brand values and translating them into innovative design elements and interactive features truly set them apart. We couldn't be happier with the results of our collaboration, and we highly recommend Ultimate Systems to anyone looking for a reliable and creative web development partner.
Hadrian's Review Sourced from Google
Ultimate Systems delivered outstanding results in developing our financial system. Their innovative approach, commitment to inclusivity, and track record of success set them apart from competitors. Throughout the project, they demonstrated exceptional project management, timely delivery, and proactive responsiveness. Their dedication to promoting financial inclusivity was particularly impressive. Although there's room for improvement in transparency, Ultimate Systems' exceptional services made them invaluable partners in our project.
Dv Hacv's Review Sourced from Google
We had the pleasure of working with Ultimate Systems to develop an exceptional e-commerce solution for our company, Animille. From the initial consultation to the final implementation, Ultimate Systems demonstrated unparalleled expertise and professionalism. Their team meticulously crafted a visually stunning website that perfectly showcased Animille's diverse product range. The integration of secure payment processing functionalities was seamless, ensuring our customers' transactions were safe and efficient. Additionally, their expertise in backend systems resulted in smooth inventory management and order fulfillment processes. The final product exceeded our expectations, offering users a seamless shopping experience with streamlined navigation and optimized product listings. We highly recommend Ultimate Systems for any e-commerce project!
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsWeb, Mobile and IoT solutions. Made easy.
We are CimpleO, an award-winning production studio that delivers on time and budget. Since 2012.We develop custom software, complex web services, desktop applications, client-server systems, elegant web, and mobile apps as well as IoT solutions that are made to scale...
Top Services:
- eCommerce Development
- Web Development
- Web Design
- IoT
- Software Development
- Show more
- Location
- Phuket, Thailand
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $25,000 - $50,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsCimpleO Services
Data sourced from the agency's DesignRush profileRedsqware HP Century21 W1 Shout Factory CEIC JOC IHS POD10
We Design, Develop and Deliver.
At Cinnova, we treat your business as our own, combining design-thinking, engineering, and business acumen to solve complex challenges. Our flexible engagement models ensure tailored solutions that drive growth and efficiency...
Top Services:
- Web Development
- Mobile App Development
- Software Development
- UI/UX Design
- Web Design
- Show more
- Location
- Cincinnati, Ohio
- Number of Employees
- 100 - 249
- Minimal Budget
- $25,000 - $50,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsCinnova Technologies LLC Services
Data sourced from the agency's DesignRush profileUniversity of Cincinnati HP ProCamps Worldwide
Cinnova Technologies LLC Reviews & Testimonials
Kyle Neely's Review Sourced from Google
Sketchy method of cold calling to get leads by claiming they talked to someone else at my org that they did not in fact talk to. Called on my personal cell phone. Would not do business with them if the engage this this type of misleading lead generation.
First's Review Sourced from Google
Sketchy people would be a polite way to put it.Kept sending advertisements to a general email box, I responded asking to unsubscribe, they started sending those advertisements to the email from which I responded.I wouldn't trust these people to do anything.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsCreating Effective Digital Solutions For Complex Challenges
We are Zentix Soft, a UK-founded IT company with offices in Ukraine and Latvia. Our team specializes in full-cycle web development, mobile app development, and custom software solutions. We operate in three models: in-house, outsourcing, and outstaffing, helping clients build efficient and scalable...
Top Services:
- Web Design
- Mobile App Development
- Web Development
- Software Development
- UI/UX Design
- Show more
- Location
- London, United Kingdom
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 1 Project Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsZentixSoft Services
Data sourced from the agency's DesignRush profileOsmium LuceSposa HoReCa
We Help To Perform Better,Scale Faster.
EXOBLOC a UAE-based blockchain & IT services firm delivers enterprise-grade blockchain, AI and data-driven solutions designed to help companies scale securely and efficiently. They specialize in services like supply-chain transparency, identity verification, real-estate and gold tokenization, plus bespoke AI...
Top Services:
- Blockchain
- Software Development
- AI Development
- Mobile App Development
- IT Services
- Show more
- Location
- Ras Al-Khaimah, United Arab Emirates
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $19/hr
- Minimal Budget
- $25,000 - $50,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsExoBloc FZ-LLC Services
Data sourced from the agency's DesignRush profileLufina Sunset Capital Tasnim Cooper Facets Jewel
Accelerating Software Innovation With AI-Native Engineering
Engenious is an AI-native quality engineering partner helping startups and enterprise teams build and deploy software with confidence. We specialize in advanced QA automation, AI model validation, and mobile quality engineering, enabling organizations to accelerate release cycles while reducing risk. From...
Top Services:
- Mobile App Development
- Web Development
- AI Development
- Location
- Las Vegas, Nevada
- Number of Employees
- Under 49
- Average Hourly Rate
- $75/hr
- Minimal Budget
- $25,000 - $50,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsEnGenious Services
Data sourced from the agency's DesignRush profilePhoenix Life Sciences Grammarly Sage Company Weedar Pango Superhuman Forte Group Elite Fleet Group Emerge GoChamp
On demand elite tech talent
Since 2006, X-Team has helped companies scale high-performing engineering teams by connecting them with elite remote developers from around the world...
Top Services:
- IoT
- Software Testing
- Blockchain
- VR/AR
- Mobile App Development
- Show more
- Location
- Austin, Texas
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $99/hr
- Minimal Budget
- $25,000 - $50,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsX-Team Services
Data sourced from the agency's DesignRush profileKaplan FOX Instil
Empowering Innovation, Driving Change.
DuckMa is a seasoned mobile app development agency that elevates businesses to new heights through innovative digital solutions. With over a decade of experience, DuckMa employs a unique method that transforms visionary ideas into reality, delivering advanced software and mobile applications. The agency...
Top Services:
- Digital Services
- Product Design
- Digital Strategy
- IoT
- AI Development
- Show more
- Location
- Rezzato, Italy
- Number of Employees
- Under 49
- Average Hourly Rate
- $149/hr
- Minimal Budget
- $25,000 - $50,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsDuckMa Services
Data sourced from the agency's DesignRush profileRIB arriva amiko
DuckMa Reviews & Testimonials
niccolò calandri's Review Sourced from Google
Unfortunately we didn't find ourselves in terms of development methodology and results. The work was not only late but was not even complete.When asked to do the bare minimum, they asked us for more money.After loud complaints, they restarted the development and completed the guaranteed minimum. Edited review.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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Cross-Platform App Development Company Hiring Guide
What is a cross-platform app development company?
A cross-platform app development company is a company that offers a seamless approach to mobile app creation. It goes beyond the traditional method of building separate apps for iOS and Android, opting instead for a single codebase that utilizes cross-platform frameworks like React Native or Flutter.
Businesses look for cross-platform mobile app development services because of these challenges:
- Low or declining brand visibility and sales
- App development using two code bases is slow and inefficient
- Updates are limited and slow to deploy
- Costly maintenance fees
- Limited app functionalities and features
With cross-platform app development companies, businesses can experience faster development times and potentially lower costs. Their framework experts ensure the app functions flawlessly on both iOS and Android devices, creating a flexible app that can reach a wider audience without the burden of maintaining separate codebases.
Success story
In the following success story chosen by our experts, we highlight how a cross-platform mobile app development company improves business efficiencies:
- Challenges: An American video rental company needed to upgrade its existing mobile app that was built with outdated coding practices, faced performance issues, and lacked device and orientation optimization. Its user interface (UI) was not intuitive, and it failed to load on a variety of devices.
- Solutions: Simpalm refactored the codebase, improving app performance and ensuring smooth operation on modern devices. Its new intuitive UI was now optimized for various devices and orientations. The team also integrated a proprietary AI engine alongside an off-the-shelf solution to create recommendation algorithms. These algorithms learn user behavior and suggest relevant content and deals, driving higher in-app purchases and monetization.
- Results: The collaboration improved the client’s mobile app. This resulted in increased user engagement, higher in-app purchases, and greater monetization for the client.
What do cross-platform app development companies do?
Cross-platform app development companies specialize in creating mobile apps that function seamlessly on both iOS and Android devices using a single codebase. Here’s a breakdown of their core services:
- App development
Translate app concept into a functional reality using cross-platform frameworks like React Native or Flutter - Feature implementation
Program the features and functionalities you envision for your app, ensuring a smooth user experience across both iOS and Android - Code reusability
Expertise in leveraging a single codebase, reducing development time and cost compared to building separate native apps for each platform - User interface (UI) design
Design visually appealing and user-friendly interfaces that work consistently across both iOS and Android devices - User experience (UX) optimization
Create a seamless and intuitive user experience, ensuring your app is easy to navigate and enjoyable to use on any platform - Project planning and scoping
Collaborate with you to define your project scope, establish timelines, and manage the development process effectively - App Store optimization (ASO)
Assist with optimizing your app listing for visibility in the Apple App Store and Google Play Store - Pre-launch testing and quality assurance (QA)
Conduct thorough testing to ensure your app is bug-free and functions optimally on various devices before launch - Post-launch support and maintenance
Offer ongoing maintenance and support after your app’s launch, addressing bugs, implementing new features, and keeping the app up to date
Success story
Cross-app development companies go beyond creating a seamless user experience (UX), as presented in the case study of Evolus and its partnership with Kingsmen Digital Ventures in creating an engaging app experience:
- Challenges: Evolus, a performance beauty company, struggled to enter the self-pay aesthetic market. The industry already had too many established giants, but its traditional communication methods could not grab user attention. It partnered with Kingsmen Digital Ventures to address the need for a customer-centric approach in the market.
- Solutions: Kingsmen Digital Ventures implemented a design and technologically driven approach to make Evolus stand out from the market. It prioritized user engagement and injected a playful, interactive tone throughout the user journey, along with fast-responding functionalities.
- Results: Within two quarters, Evolus rose to the #3 spot in market share. The app’s functionality translated to their ability to ship products to 3,500 accounts within 90 days. It has also fostered a user base that became active brand ambassadors. The platform’s engaging user experience led to referrals, propelling Evolus’ growth.
How much do cross-platform mobile app development services cost?
Cross-platform mobile app development services cost between $10,000 to $60,000 depending on the complexity of the app. Factors such as design, functionality, features, team size, and location of the team also affects the price of the cross-platform app development.
Here is a cost breakdown of cross-platform development app:
- Simple app development — $10,000 to over $30,000
Basic features such as login, user profile, in-app purchases, search - Moderate app development — $25,000 to over $45,000
Average features with additional inclusions such as social log-in and geo-tracking - Advanced app development — $40,000 and above
Complex features with longer timelines and custom design and system
On DesignRush, the top 50 cross-platform development companies charge an average of $46/hour. 10.5% of cross-platform mobile app development services accept projects with a budget of less than $1,000, catering to basic app development. On the other hand, 5.7% accept projects with a $50,000 minimum budget offering more complex services and features.
Why should I hire a cross-platform app development company for my business?
You should hire a cross-platform app development company to increase your brand visibility across multiple platforms. Moreover, a cross-platform mobile app development company offers a strategic approach to mobile app development, allowing you to achieve cost-efficiency, faster time to market, a wider audience reach, and a consistent user experience — all while leveraging the expertise and ongoing support of a specialized development team.
Hire cross-platform app development companies because they:
- Have the flexibility to adapt and scale your app to future needs
- Enable faster market entry, wider reach, and potentially lower development costs
- Apply timely bug fixes, security updates, and assistance with future development
- Have structured development approaches and project management tools
- Leverage a wider pool of developers experienced in cross-platform frameworks
- Provide easier integration of third-party libraries and plugins
Success story
The benefits of hiring a cross-app development company can be fully understood through the following success story chosen by our experts:
- Challenges: WYA is a location-based social media application that connects people through social gatherings. However, it needed a platform that was easy to navigate and appealed to younger audiences.
- Solution: Diffco developed a user-friendly up-to-date interface that allows users to connect with others, explore events, and navigate using maps and contact lists. It prioritizes user convenience throughout the app experience where users can effortlessly browse and RSVP to various events, filtering them by their interests and preferences. The team also utilized a robust tech stack that includes iOS SDK, Swift, PHP (Symfony), Docker, AWS, Apple Maps, and Yelp.
- Results: The partnership with Diffco exceeded the client’s expectations from project management to its expertise in design and development.
How do I choose the best cross-platform app development company for my business?
Choosing the best cross-platform app development companies involves carefully assessing the company that can seamlessly bring the app you envisioned to life.
Follow these steps as a guide in making an informed decision:
- Define your business goals
Clearly articulate the app’s purpose for your business and its target audience. This might include targeting new audiences, increasing sales, and doubling up efforts to make your brand more visible in the market. - Assess project scope and complexity
Define the size and complexity of your app, considering features, integrations, and required development time. - Determine the budget
Determine your realistic budget for the entire development process, from pre-development to development, testing, and launch. - Research potential partners
Research companies experienced in developing apps in your specific industry. Utilize search engines like Google or navigate our agency listings on DesignRush. Seek companies with an understanding of industry-specific challenges and best practices is crucial for a successful app. - Look into industry experience and portfolio
Assess the company’s website by looking into its expertise in cross-platform development. Scan through case studies and testimonials from past clients in your industry or with similar projects to get insights on its work ethics and processes. You can also check agency profiles on DesignRush to get insights of a company’s reviews, case studies, and portfolio. - Take note of technical expertise and references
Ask about the team’s experience and qualifications in specific cross-platform frameworks. Request references from past clients to gain unbiased feedback on their experience working with the company. - Shortlist cross-platform app development companies
Create a list of the best cross-platform mobile app development companies that align with your initial goals and contact them to express your interest in a partnership. Send a request for proposal (RFP) to inform them about the intricacies of the project and your more specific needs. - Interview their internal teams
Understand the team’s development process, communication style, and tools used for project management. Look for cross-platform app development companies with a clear and collaborative approach throughout development. Ask them how they would approach your project and their plan for user testing and ensuring a seamless cross-platform experience. - Assess industry-specific expertise
Inquire about the team’s understanding of the technologies and functionalities relevant to your industry. Ask how they would approach the unique technical challenges or regulatory requirements specific to your niche. - Discuss additional integrations
If your app requires integrations with tools or platforms, ask about the agency’s experience in handling such integrations within a cross-platform development approach. - Decide on your selected company
Select the partner that best aligns with your company’s needs and can cater to the specific features of your project.
Still on the lookout for the perfect cross-platform app development partner? Navigate our Marketplace and share some details about your project. We’ll then provide you with a list of five top-rated agencies that meet your needs and qualifications for free.
How do I find the best cross-platform mobile app development company on DesignRush that fits my budget?
You can find the best cross-platform mobile app development company on DesignRush by navigating its filters. We offer a wide selection of price ranges to cater to project needs of every size. From $1,000 to above $50,000, we have agencies that meet your needs and budget.
| Low Budget: 1k above | |
| Mid Budget: 10k above | |
| High Budget: 50k above |
Our platform understands that finding the right fit goes beyond just budget. We have agency profiles offering in-depth insights on team structure, development approach, and portfolio of successful cross-platform apps, allowing you to make an informed decision in choosing the right cross-platform app development company.
What are the key success metrics in cross-platform app development projects?
The success of a cross-platform app development project goes beyond just a functional app. It's about achieving the goals you set for the app, whether it's driving user engagement, increasing brand awareness, or boosting revenue. Here are some key success metrics to consider for cross-platform app development projects:
- Number of downloads and installs
The total number of times users download and install your app across both platforms (iOS and Android). - Number of active users
The number of users actively engaging with the app on a daily (DAU) or monthly (MAU) basis. Tracks user retention and overall app usage. - Session length and frequency
The average time users spend within a single app session and how often they return to use the app over a period. Shows user interest and app value. - App store ratings and reviews
Positive ratings and reviews indicate user satisfaction with the app’s functionality and user experience. - Crash rate and bug reports
A low crash rate and minimal bug reports demonstrate app stability and a smooth user experience. - App loading speed and performance
Measures how quickly the app loads and performs actions. Crucial for user satisfaction and engagement.
What questions should I ask cross-platform app development companies before hiring one?
Before hiring a cross-platform app development company, evaluate if they are the right fit for your project. Developing a cross-platform app requires a skilled and experienced partner and choosing the right company is important to the success of your project. To ensure you find the ideal fit, here are some key questions to ask them before hiring:
Its Relevant Background
- How many years of experience does your company have developing cross-platform apps?
- Can you share success stories of cross-platform apps you’ve built in my industry?
- What is the expertise level of your developers?
- Can you elaborate on any internal tools or frameworks you've developed to streamline the cross-platform app development process?
- Have you received any industry awards or recognitions for your work in cross-platform development?
- What are the most common challenges you encounter when developing cross-platform apps in our industry and how do you manage to work around it?
Its Services and Processes
- What project management methodology do you follow?
- Can you outline the roles and specialties of the team members who would be working on my project?
- Does your company offer up-gradation services for an updated version?
- What is your approach to ensuring a seamless user experience across different platforms?
- Do you have a team of UI/UX designers who can create a visually appealing and intuitive app?
- How do you handle intellectual property rights for the app concept and code developed?
- What tools or strategies do you employ to track app usage and gather user feedback for ongoing improvements?
- What is your approach to prototyping and user testing throughout the development process to ensure an intuitive and user-friendly app experience across platforms?
Related to Your Project
- How will you ensure your proposed solution aligns with our business goals and target audience?
- How will we communicate throughout the development process?
- Do you offer ongoing maintenance and support after the app launch?
- How will you handle bug fixes and updates after the app is live?
- How will your approach ensure the app can be easily scaled to accommodate future growth in users or features?
What are the best cross-platform app development companies in the US?
The best cross-platform app development companies in the US are:
- Suffescom Solutions Inc.
- 5.0 stars on DesignRush (36 reviews)
- Top clients: Modani Furniture, King Cubs, Lead Action, Epic
- Designli
- 5.0 stars on DesignRush (45 reviews)
- 5.0 stars on Google (73 reviews)
- Top clients: Goodwill, Earthlink, Rotary, Michelin
- Zazz
- 5.0 stars on DesignRush (95 reviews)
- 5.0 stars on Google (12 reviews)
- Top clients: Harvard Innovation Labs, Bungie Foundation, Skills Competences Canada, Coinbase
- AllianceTek Inc.
- 4.9 stars on DesignRush (12 reviews)
- 4.6 stars on Google (14 reviews)
- Top clients: Genpact, Zydus USA, NFL, Johnson-Johnson
- Simublade
- 4.8 stars on DesignRush (5 reviews)
- 4.5 stars on Google (8 reviews)
- Top clients: Tavus, Savve, Opar, Just Live






















