Our expert analysts researched and ranked the leading California iPhone app development companies that build customer-centric applications that engage and convert users into paying customers. Use our practical tool to filter listings by budget, size and reviews and select the best partner for your business needs.
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.

Goji Labs
VerifiedVerified by the DesignRush team for authenticity and credibility.AI LeaderRecognized for strong visibility across AI-powered search and answer engines.+1Award WinnerRecipient of a Best Design Award for outstanding work.We Define the Right Build Before We Start It.
Goji Labs builds iOS and Android apps across 20+ industries, pairing strategy, design, and engineering under one roof. With 500+ products shipped, $1B+ raised by clients, and 12 years in business, it challenges the brief solving strategy and process gaps before they become technical issues...
Top Services:
- Mobile App Development
- Software Development
- UI/UX Design
- AI Development
- Web Design
- Show more
- Location
- Los Angeles, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 23 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsGoji Labs Services
Data sourced from the agency's DesignRush profileWorld Wildlife Fund K-ID City of Los Angeles TGS Kangarootime World Health Organization Prediction Strike American Kennel Club Youth on Their Own Root Insurance
Goji Labs Reviews & Testimonials

Web Design Review from Michael Krone
We partnered with Goji Labs for a complete app build, and they delivered exactly what we needed. Their team handled the entire project professionally and with great care from start to finish. I would highly recommend Goji Labs to anyone seeking a skilled and dependable development partner.

Software Development Review from Wilson Rapp
We brought Goji Labs on board for a major migration project, and the entire experience was smooth and well-managed from start to finish. We could not be happier with the results. Their expertise gave us confidence throughout the process, and we would not hesitate to work with them again.

Mobile App Development Review from Sheila Reddy
As a founder with just an idea and a business model, I needed a partner who could turn that vision into a real product. Goji Labs guided me through every step of the process and built exactly the app we needed. Their expertise and patience made the entire journey manageable and rewarding.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Yalantis
VerifiedVerified by the DesignRush team for authenticity and credibility.Full-cycle tech partner with deep expertise in IoT
We deliver cutting-edge, scalable, and fully functional IoT hardware and software products and ecosystems that help clients achieve their specific objectives...
Top Services:
- IoT
- Software Development
- Mobile App Development
- AI Development
- Big Data Analytics
- Show more
- Location
- California City, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $50/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 accountsYalantis Services
Data sourced from the agency's DesignRush profileRAKwireless Toyota Tsusho KPMG Healthfully Orbis Systems Lifeworks Scholz Databank 123 Sourcing Truhoo
Yalantis Reviews & Testimonials

Fintech Review from Sergei Lishchenko
The exception team the client collaborated with brought in fresh ideas and innovative technologies previously unfamiliar to the client. For example, with Yalantis' guidance, the client's developers explore the Go language. The primary reason the client chose Yalantis is its strong organizational and project management skills. It's not just about the developers; Yalantis provides a comprehensive support framework, ensuring that a project manager is consistently present. (Verified via email)
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Software Development Review from Jason Jung
Yalantis functions as an integral scrum team, supporting the development teams of a real estate firm. It created renovation project management tools that encompass a web app, a mobile app, and a backend system. Thanks to Yalantis, the client expanded development capabilities and achieved key short-term goals. Its quick integration was pivotal in launching various projects. Beyond delivering top-notch work, Yalantis emphasizes a culture that prioritizes the customer's needs. (Verified via email)
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Outsourcing Review from Roy D
An IoT manufacturer teamed up with Yalantis to craft an application, enabling users to manage their devices more efficiently. Utilizing Node.js and basing the architecture on Circulus, Yalantis delivered commendable outcomes. It is responsive to any development challenges, offering swift resolutions. The client appreciates Yalantis' proactive stance, impressive technical expertise, and practical solution suggestions. (Verified via email)
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsBitsWits guarantees app delivery in 4 weeks, building native iOS and Android apps alongside Flutter, React Native, AR/VR, blockchain, and mobile game solutions. With 10+ years in business, it has launched 1,200+ successful projects, served 100+ global clients, and won a Horizon Interactive Gold Award...
Top Services:
- Mobile App Development
- Software Development
- VR/AR
- Blockchain
- AI Development
- Show more
- Location
- Los Angeles, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 12 Projects Listed
Diffco offers solutions that transform ideas into dynamic digital experiences. Precision and creativity combine seamlessly in our mobile innovation and software crafting solutions, delivering intuitive interfaces and robust functionality that elevate user engagement and business growth...
Top Services:
- AI Development
- Software Development
- Staff Augmentation
- Mobile App Development
- Web Development
- Show more
- Location
- San Jose, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $110/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 31 Projects Listed

Empat
VerifiedVerified by the DesignRush team for authenticity and credibility.Since 2013, we've delivered 300+ digital products across 17 countries, empowering brands like Porsche, Panasonic, Transparency International, Heinemann, CBRE, and dozens of ambitious startups and scaleups...
Top Services:
- Mobile App Development
- Software Development
- Staff Augmentation
- AI Development
- Web Development
- Show more
- Location
- San Francisco, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $45/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 24 Projects Listed
I am grateful that you took the time to visit! Because you are here, I may assume that you are searching for help with some aspect of software development, whether it is UI/UX design or mobile app development. You are at the appropriate location. Your unique requirements for digital company might become a...
Top Services:
- Mobile App Development
- Web Design
- Software Development
- WordPress Website Design
- eCommerce Development
- Show more
- Location
- Los Angeles, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 16 Projects Listed

Solveit
Award WinnerRecipient of a Best Design Award for outstanding work.We design and develop top-rated mobile and web apps for startups and SMEs. E-commerce, Healthcare, Marketplaces, and more. Our clients rate us for 5 out 5 - check out why!...
Top Services:
- Mobile App Development
- Software Development
- Web Design
- Design Services
- AI Development
- Show more
- Location
- San Francisco, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $45/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 32 Projects Listed
App Development is at the heart of what we do. EffectiveSoft stands out because we turn your ideas into reliable digital products, supporting you from concept to launch and beyond. Our collaborative approach yields unmatched expertise in software, AI, and cloud solutions for your growth...
Top Services:
- Software Development
- Mobile App Development
- Big Data Analytics
- AI Development
- ERP Consulting
- Show more
- Location
- San Diego, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 29 Projects Listed
Clear your backlog and ship products you're proud of faster with our nearshore software development resources. We provides highly skilled, team-based resources to companies that need tech talent fast...
Top Services:
- Mobile App Development
- Software Development
- Staff Augmentation
- Web Development
- eCommerce Development
- Show more
- Location
- San Francisco, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $70/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 8 Projects Listed
At Vention, unparalleled customer care isnt just a promise its our mission. We blend personalized experience, unwavering attention to detail, and a genuine passion for your business, ensuring that every aspect of our collaboration is tailored to your success...
Top Services:
- Software Development
- Staff Augmentation
- Mobile App Development
- Software Testing
- Web Development
- Show more
- Location
- San Francisco, California
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 15 Projects Listed
At eQuality Software, we create digital solutions that drive real impact. With over 14 years of experience in mobile app development, our team specializes in designing and delivering scalable, intuitive, and high-performance applications tailored to your business goals...
Top Services:
- Mobile App Development
- Blockchain
- VR/AR
- eCommerce Development
- IoT
- Show more
- Location
- San Francisco, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 13 Projects Listed
Wve Labs is a digital product company bringing strategy, design, and engineering together to create mobile apps, web platforms, and custom software. Since 2015, we have partnered with startups, growth companies, and global organizations to design, build, and scale digital products...
Top Services:
- Mobile App Development
- Software Development
- UI/UX Design
- Product Design
- Web Development
- Show more
- Location
- Costa Mesa, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 5 Projects Listed
At SPINX Digital, their team of innovators, digital marketers, and video editors in tech and design, bring skills above and beyond the ordinary to every project...
Top Services:
- eCommerce Development
- Web Design
- Mobile App Development
- Branding
- Digital Marketing
- Show more
- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $25,000 - $50,000
EltexSoft is a boutique engineering studio of 35 to 50 senior developers, building web, mobile, and AI products for startups and established companies since 2015. We embed as a long-term extension of your team, the engineers who scope the work are the ones who ship it...
Top Services:
- eCommerce Development
- AI Development
- Web Development
- Software Development
- Mobile App Development
- Show more
- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $80/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 3 Projects Listed
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