Connect with vetted app development companies that build custom solutions designed to drive retention, engagement, and revenue. Filter agencies by budget, team size, and location to find the right partner for your project.
List of the Best App Development Firms
15 Companies-Rankings updated: September 04, 2026
All mobile app development firms on DesignRush have been assessed for their expertise, portfolio, and verified client reviews. Some listings may be paid.
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
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Location
Cascais, Portugal
Number of Employees
50 - 99
Average Hourly Rate
$75/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
22 Projects Listed
Alty Services
Mobile App Development
Design Services
Software Development
Web Design
UI/UX Design
Web Development
AI Development
Software Testing
Market Research
Product Design
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
VISA
Mastercard
Raiffeisen
Monobank
GTBank
PrivatBank
ABA Bank
CBH Bank
Renovite
Corezoid
Data sourced from the agency's DesignRush profile
Alty Reviews & Testimonials
Ewa Koltunczyk (Karabon)
Regulatory Specialist II at CID LINES, An Ecolab Company
5.0★
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
Adam Kubas
Director at Institute of Physical Chemistry PAS
5.0★
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.
Rajesh Kasturirangan
Founder at Socratus
5.0★
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
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Here at SEM Nexus, we combine agile App Development with strategic marketing to launch standout mobile apps. Our deep understanding of user experience, monetization models, and growth hacking ensures unmatched results. From discovery to VC prep, we drive engagement and scale your app’s success...
Top Services:
Mobile App Development
Digital Marketing
Social Media Marketing
Advertising
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Location
New York City, New York
Number of Employees
Under 49
Average Hourly Rate
$100/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
8 Projects Listed
SEM Nexus Services
Mobile App Development
Digital Marketing
Social Media Marketing
Advertising
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Know Wake
Assassins
Nautical Eye
YogiGoFitness
WinQuik
Data sourced from the agency's DesignRush profile
SEM Nexus Reviews & Testimonials
Anonymous
CEO at Cell My Listing
5.0★
App Marketing Review from Anonymous
SEM Nexus built a mobile app for our real estate platform, handling a complex API and other technical elements while also marketing the app. They always deliver what’s promised and maintain strong communication. The team is helpful, honest, and quick to respond, always willing to answer questions and go the extra mile.
Marilyn Major
CEO at FYSH
5.0★
Digital Marketing Review from Marilyn Major
The app is now live on Google Play and App Store and reached 8,450 downloads and 5,621 accounts created. Overall, [we are] satisfied with these success metrics thanks to SEM Nexus. The team manages the engagement well through regular meetings. They're always available, courteous, and honest. (Verified via email)
Anonymous
Founder at Truck'n
5.0★
Mobile App Development Review from Anonymous
The app is easy to navigate and designed for users. We’re very pleased with SEM Nexus’ work, which has exceeded expectations. They manage the partnership well, remain polite and professional, and take full ownership of the project’s success.
Reviews verified by DesignRush and sourced from the agency's profile
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Providing Chatbot, Development, and website/app solutions. If you can dream it, we can build it. Intelligent apps require brilliant design and intuitive product strategy. We analyze and design every aspect of your project to ensure that its engaging, stylish, and easy to use...
Top Services:
Mobile App Development
AI Development
Wearables
Web Design
Show more
Location
San Diego, California
Number of Employees
Under 49
Average Hourly Rate
$140/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
11 Projects Listed
Dogtown Media Services
Mobile App Development
AI Development
Wearables
Web Design
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Google
Red Bull
Lexus
United Nations
CitiBank
YouTube
Minneapolis Heart Institute
Macy's
University of Oklahoma
Udemy
Data sourced from the agency's DesignRush profile
Dogtown Media Reviews & Testimonials
Michael Paskow
Director of Scientific Affairs and Research at National Sleep Foundation
5.0★
Web App Review from Michael Paskow
Dogtown media helped to develop a new cross-platform app and web portal for a sleep health study involving insomniacs for the National Sleep Foundation. The team was reliable and developed an excellent experience for end-users. It has been a great experience working with DTM. The team is reliable and communicative. They come up with creative solutions and are always available for any and all maintenance issues that arise. Although I am not well-versed in pricing for app development, I do feel that the pricing may have been a little too steep. That said, the work they have produced is excellent, and I'm very happy I got to work with the team at DTM.
John Shammas
Chief Product Officer at DriveWealth
5.0★
Call Centers Review from John Shammas
We've really enjoyed the time spent with Dogtown and their support in our product initiatives. They have always been readily available to talk through design ideas, technical challenges, or feature improvements. Communication has always been solid, with a reliable stream of beta builds (delivered to our own devices to test out) and detailed patch notes. We look forward to working with Dogtown on more projects in the future!
Reviews verified by DesignRush and sourced from the agency's profile
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Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Aroma Kava
LastBid
Budu Sushi
Magento 2 Migration
Rite Space
Bookbreakrs
Can
Vivat
Udifo
ServisBook
Data sourced from the agency's DesignRush profile
Dinarys Reviews & Testimonials
André Schörnig
Marketing-Manager at myfelt GMBH
5.0★
eCommerce Development Review from André Schörnig
We have been working with Dinarys on our Shopify store for quite some time, and the experience has been great. From the very beginning, communication was clear, efficient, and reliable. The Dinarys team consistently delivered detailed proposals, stuck to agreed timelines, and offered well-structured solutions tailored to our needs. Their technical expertise is impressive, but what really sets them apart is their proactive attitude and genuine commitment to our project. Whenever we had questions or changes, they responded quickly and constructively. Its a true pleasure to work with a partner who feels like an extension of our own team. Highly recommended!
Nissrine Kohen
Sr. Backend Shopware Developers at H1 Webdevelopment
4.5★
Web Development Review from Nissrine Kohen
Weve been working with Dinarys for quite some time now, mainly collaborating on Magento and Shopware development projects. Their developers consistently show solid technical expertise and a good understanding of our expectations and workflow.
Communication is generally smooth, and response times are quick. Whenever issues arise, the team is open to feedback and acts quickly to improve. Over time, weve seen a positive evolution in their proactiveness and alignment with our teams way of working.
They are flexible and collaborative, and its clear that they genuinely aim to build long-term partnerships. For the quality delivered, we feel the pricing is fair and transparent.
All in all, weve been satisfied with our cooperation and would recommend Dinarys as a development partner, especially for companies looking for experienced backend developers in Magento and Shopware.
Andrew White
Review from Google
5.0★
Andrew White's Review Sourced from Google
I'm wasn't in the German office, but i had experience of communication with this company! I can say that it leaves the warmest feelings in the my heart! Guys you are the best!
Reviews verified by DesignRush and sourced from the agency's profile
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Build Your Intelligent Enterprise Business Applications
Fingent is a global custom software development company helping businesses turn their digital ambitions into reality. With over 20 years of experience, we specialize in building scalable, secure, and innovative technology solutions that drive operational excellence and business growth...
Top Services:
Software Development
Mobile App Development
AI Development
Cloud Consulting
IT Services
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Location
White Plains, New York
Number of Employees
500 - 999
Average Hourly Rate
$30/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
5 Projects Listed
Fingent Services
Software Development
Mobile App Development
AI Development
Cloud Consulting
IT Services
VR/AR
Big Data Analytics
IoT
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Apollo Tyres
BBC Media Action
Royal Enfield
Raymond
Johnson &Johnson
Sony
NEC
Casenet
Premier Jets
SRV Canada
Data sourced from the agency's DesignRush profile
Fingent Reviews & Testimonials
Undisclosed
Owner at Consumer company
4.3★
Web Design Review from Undisclosed
I hired Fingent to create a web-based application for my website's visitors. They communicated their strategy effectively and adhered to our agreement. The pricing was notably low compared to other quotes I received. Ultimately, the project was a huge success, and they continued to provide support even after delivery. (Source: 3rd Party Review Platform)
Alex Burkhead
VP of Product at Findlay International
5.0★
Software Development Review from Alex Burkhead
Fingent brought both attention and creativity to our project. They polished our storyboard and developed the tool we needed. Very responsive and very talented.
Abraham Isaac
VP- Sales & Marketing at KOGLAND Commerce Pvt Ltd
4.2★
Software Development Review from Abraham Isaac
Though we faced a few glitches initially, the process is now smooth and running well. The effort taken by the management is quite appreciable and now we have an eCommerce site which is getting better by the day and also the number of trnxs have also gone up significantly.
It gives us grt pleasure to be working with Fingent and we look forward to completing this project at the earliest.
Reviews verified by DesignRush and sourced from the agency's profile
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Pace Digital is a cutting-edge digital marketing agency offering innovative solutions for businesses. With expertise in SEO, social media marketing, web design, and more, we help clients optimize their online presence and drive targeted traffic. Our team of experts utilizers data-driven strategies to deliver...
Top Services:
Web Development
Mobile App Development
Web Design
eCommerce Development
Branding
Show more
Location
Oakland, California
Number of Employees
1000 & Up
Average Hourly Rate
$70/hr
Minimal Budget
$25,000 - $50,000
Pace Digitals Services
Web Development
Mobile App Development
Web Design
eCommerce Development
Branding
Digital Marketing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Fantasy of Flight
Jet Edge
Bill Hansen Catering
Data sourced from the agency's DesignRush profile
Pace Digitals Reviews & Testimonials
Nancy
Undisclosed at Undisclosed
5.0★
Video Production Review from Nancy
I've had the pleasure of witnessing Pace Digitals exceptional creativity and expertise in bringing ideas to life through animation. Their ability to convey complex concepts with visual storytelling is nothing short of impressive. Pace Digitals’ video animation consistently delivers engaging and visually stunning animations that captivate audiences and effectively communicate messages.
Christopher
Undisclosed at Undisclosed
5.0★
SEO Review from Christopher
The impact of Pace Digital's SEO service was not only noticeable but also transformative. The surge in international website traffic, improved search engine rankings, and enhanced global customer engagement reinforced the efficacy of their approach. Beyond the numbers, their service has played an instrumental role in positioning my brand as an authority on a global scale.
Nathaiel Lai
Undisclosed at Undisclosed
5.0★
Logo Design Review from Nathaiel Lai
Pace Digitals truly exceeded my expectations with their logo design services. Their creative team demonstrated a deep understanding of our brand vision and translated it into a captivating and unique logo. Communication was seamless throughout the process, and they delivered the final design promptly.
Reviews verified by DesignRush and sourced from the agency's profile
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At Custom D, we specialize in developing advanced and bespoke software solutions. We take pride in our work and the transformative impact that custom software can bring to businesses. Our team of highly skilled and experienced developers are passionate about providing exceptional service to our clients, and...
Top Services:
Software Development
Mobile App Development
Web Development
Cloud Consulting
Business Consulting
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Location
Christchurch, New Zealand
Number of Employees
Under 49
Average Hourly Rate
$199/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
7 Projects Listed
Custom D Services
Software Development
Mobile App Development
Web Development
Cloud Consulting
Business Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Public Interest Advocacy Centre
Art Money
Podium
IMEX Pacific Money Transfer
Australian Fellowship of Evangelical Students
Inspire Foundation
Sameview
VSE International
Student Volunteer Army
Foundation of Arable Research
Data sourced from the agency's DesignRush profile
Custom D Reviews & Testimonials
James Kirkpatrick
Review from Google
5.0★
James Kirkpatrick's Review Sourced from Google
Custom D have been fantastic in building our new website; they're fast, efficient and have been extremely helpful in addressing our concerns and answering questions. We have had a great experience using them and expect to have a good long working relationship going forward.
Tania Hill
Review from Google
5.0★
Tania Hill's Review Sourced from Google
As part of the voluntary administration group for the Inspire Foundation, I have worked closely with Julie and the Custom D team in the setting up of the Foundation's online application process. The team have been amazing to work with, finding solutions for the step by step processes as we worked our way through the implementation of the online system. Starting from scratch, their ability to grasp our needs quickly and clearly most certainly went a huge way towards creating a seamless process from what was a daunting prospect in the beginning. The open communication lines and prompt results greatly impressed me and I whole heartedly recommend Custom D as THE company to go to for all of your software, website and database design requirements.
Inspire Foundation
Review from Google
5.0★
Inspire Foundation's Review Sourced from Google
Custom D, are world class software and database designers. they built a website with intranet and an online application system for our Foundation which allows the processing of hundreds of applications for grants whch can be viewed and assessed in real time by our selction panel. The system was designed from scratch, modified and developed during the development process and then enhanced with user experience feedback.
it worked first time, it is user friendly. Custom D had staff changes and never dropped the ball in delivering a brilliant piece of software for us that all our team use and appreciate.
Reviews verified by DesignRush and sourced from the agency's profile
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We develop your smartphone, tablet & wearable apps for Android and iOS. Mobile apps are our specialty...
Top Services:
Mobile App Development
UI/UX Design
Location
Zürich, Switzerland
Number of Employees
Under 49
Minimal Budget
$25,000 - $50,000
Portfolios Count
6 Projects Listed
iAgentur AG Services
Mobile App Development
UI/UX Design
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Annabelle
ratiopharm
medela
20min
tx
TCS
jobcloud
feller
Data sourced from the agency's DesignRush profile
iAgentur AG Reviews & Testimonials
Ronald Müller
Review from Google
5.0★
Ronald Müller's Review Sourced from Google
A highly competent agency that keeps pace with the times and implements and supports projects with joy and enthusiasm, ensuring everyone's complete satisfaction.
Both complex and seemingly simple tasks are addressed together in a structured manner, resulting in customer-focused solutions. You feel very welcome and can count on them at any time.
I highly recommend iAgentur!
Janick Tagmann
Review from Google
5.0★
Janick Tagmann's Review Sourced from Google
iAgentur is our agency partner for complex and well-thought-out apps. Competent team with fast response times and great experience. I'm looking forward to the next project.
Lorenzo Maguolo
Review from Google
1.0★
Lorenzo Maguolo's Review Sourced from Google
Very poor customer service. They are extremely slow in replying and are not even bothered to send you a quote. They treat you like they do not care at all. Unfortunately in Switzerland you often come across this unfriendly business attitude. I would not recommend them to anyone!
The below response is inaccurate. I have never sent them my budget, I have just told them about another quote I got. Their attitude is really not business friendly.
Reviews verified by DesignRush and sourced from the agency's profile
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We create personalised digital experiences that drive growth.
We are a remote-first UK-based digital solutions agency. We combine our expertise with technologies to enable the businesses we work with to thrive in the connected world. Our services principally include strategic consultancy, web/app development, custom platform development...
Top Services:
Web Development
eCommerce Development
UI/UX Design
Web Design
Mobile App Development
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Location
London, United Kingdom
Number of Employees
50 - 99
Minimal Budget
$25,000 - $50,000
Portfolios Count
9 Projects Listed
Filter Services
Web Development
eCommerce Development
UI/UX Design
Web Design
Mobile App Development
IT Services
Digital Services
Digital Strategy
WordPress Website Design
CRO
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Embark on your digital transformation journey with AccelOne's Software Development delivery model, strategically designed for optimal outcomes. Initiate your digital transformation seamlessly through our comprehensive nearshore and US-based services...
Top Services:
Software Development
Mobile App Development
Blockchain
UI/UX Design
eCommerce Development
Show more
Location
Seattle, Washington
Number of Employees
100 - 249
Minimal Budget
$25,000 - $50,000
Portfolios Count
5 Projects Listed
AccelOne Services
Software Development
Mobile App Development
Blockchain
UI/UX Design
eCommerce Development
Web Development
AI Development
Staff Augmentation
IT Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
HSBC
Xapo
University of Washington
Pan American Energy SL
Cartoon Network
Data sourced from the agency's DesignRush profile
AccelOne Reviews & Testimonials
Gustavo Lemos
Review from Google
5.0★
Gustavo Lemos's Review Sourced from Google
I've been working in AccelOne for several years already and it's an amazing place to work. Great people and a good variety of clients.
Reviews verified by DesignRush and sourced from the agency's profile
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At Big Fish, we are a team of technical experts based in the U.S. who design and build custom mobile apps...
Top Services:
Mobile App Development
Software Development
UI/UX Design
Location
Tampa, Florida
Number of Employees
Under 49
Minimal Budget
$25,000 - $50,000
Big Fish Services
Mobile App Development
Software Development
UI/UX Design
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Software & IT Services Industry
Retail Industry
Finance Industry
Data sourced from the agency's DesignRush profile
Big Fish Reviews & Testimonials
Eric Wexler
Review from Google
5.0★
Eric Wexler's Review Sourced from Google
Working with Big Fish App Development was a fantastic experience. Sara and her team were professional, helpful, responsive, and incredibly easy to work with throughout the entire project. Building an app or software can be a stressful undertaking but Sara really takes an organized approach and explains the process step by step. Her deep knowledge and expertise really showed, and she consistently met deadlines while being flexible enough to work at whatever pace was needed.
Big Fish was thorough, and always one step ahead — often thinking of things I hadn’t even considered, which made a huge difference in the App. Her input during the development process was invaluable.
I highly recommend Big Fish to anyone looking for a skilled and dependable app developer. If you are coming into this with little AppDev knowledge, just know that Big Fish is fair and trustworthy. I couldn’t have asked for a better team in bringing my app and ideas to life!
Swing Time
Review from Google
5.0★
Swing Time's Review Sourced from Google
These are really great people to work with, and they're based right here in Tampa Bay. I highly recommend Big Fish for app development.
Kym Jenkins
Review from Google
5.0★
Kym Jenkins's Review Sourced from Google
I've had really great experiences with Big Fish. Their attention to detail is only surpassed by the solid execution of app development with each project. One of the best app development companies that I've worked with, and I look forward to our next project together.
Reviews verified by DesignRush and sourced from the agency's profile
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Creative Hub - Home to creative geeks and innovative solutions
Tradinos is a software development company that creates software solutions, and Android & iOS mobile applications.
Check our Portfolio in the following link:
https://tradinos.com/portfolio.pdf...
Top Services:
Mobile App Development
Web Design
Web Development
UI/UX Design
Software Development
Show more
Location
Berlin, Germany
Number of Employees
50 - 99
Average Hourly Rate
$50/hr
Minimal Budget
$25,000 - $50,000
Tradinos UG Services
Mobile App Development
Web Design
Web Development
UI/UX Design
Software Development
Business Consulting
IT Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Welcome to Zenkoders, a leading Mobile App and Web App Development Company. We are a team of skilled developers, designers, and project managers who are committed to providing top-notch mobile and web app solutions for businesses and individuals...
Top Services:
UI/UX Design
Web Design
Web Development
Mobile App Development
Show more
Location
Claymont, Delaware
Number of Employees
50 - 99
Average Hourly Rate
$50/hr
Minimal Budget
$25,000 - $50,000
Zenkoders Services
UI/UX Design
Web Design
Web Development
Mobile App Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Vide Infra is a digital agency with 20 years of experience and a team of 30 professionals. We provide exceptional UX/UI design, web design, and web development services to clients worldwide, with a proven track record of success working with top-tier international clients. d web solutions for prominent EU...
Top Services:
Web Design
Web Development
UI/UX Design
Branding
Software Development
Show more
Location
Riga, Latvia
Number of Employees
Under 49
Average Hourly Rate
$99/hr
Minimal Budget
$25,000 - $50,000
Vide Infra Services
Web Design
Web Development
UI/UX Design
Branding
Software Development
eCommerce Development
Mobile App Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Frequently Asked Questions About App Development Companies
What services do app development companies typically offer?
App development companies usually handle strategy, UI/UX design, development, testing, launch, and ongoing maintenance. Some also provide product research and app store optimization.
How much does it cost to hire an app development company?
App development agencies typically charge between$30,000 and $500,000+, depending on the scope and complexity of the project.
Typical custom app costs by scope include:
Simple app: $10,000 to $35,000
Medium-complexity app: $35,000 to $150,000
Complex app: $150,000 to $300,000+
How long does it take to develop a mobile app?
Most apps take around 3 to 7 months to develop, though the timeline depends on complexity, features, technology, and the development team. Changes in scope, integrations, and testing requirements can also extend the timeline.
Simple apps: a few weeks to 3 months
Medium-complexity apps: 3 to 7 months
Complex apps: 7 to 12+ months
How do I choose the right app development company?
Look at relevant experience, past projects, technical expertise, communication, and post-launch support. The company should also understand your business goals and target users.
What should I look for in an app development company’s portfolio?
Check whether they have built apps similar to yours and review the usability, design quality, and functionality of their work. Pay attention to projects in your industry or with comparable technical requirements.
Proposals