Top Mobile App Developers in California
Are you looking for a top mobile app development company in California, United States? Here is the list of top mobile app developers in California (Android & iPhone) with verified client reviews & ratings. Since California is the heart of the USA’s technology industry, thousands of app development companies exist there. This makes it difficult for budding entrepreneurs to pick a reliable and efficient hiring mobile app agency for their project. To make things easier for prospects, Goodfirms has prepared a chart of iconic companies that provide excellent mobile app development services in California, focused on ‘iPhone app development in California’ and ‘Android app development in California.’
List of Top Mobile App Development Companies in California
-
MetaCTO will transform your vision into impactful mobile apps that drive new revenue, attract more customers, and keep them coming back longer. Our mission is to make your business a technology leader in your field. Founded by experienced CTOs in the US, we specialize in mobile app development, UI/UX design, project rescue, and fractional CTO consulting. We ... read MetaCTO reviews & insights
$50 - $99/hr10 - 492022Los Angeles, California -
Welcome to Chipsy io, your premier destination for comprehensive Custom mobile app development and design, mobile app backend development, and mobile app maintenance services. At Chipsy io, we blend creativity and technology to deliver solutions that drive success and innovation in the digital world. Who We Are Chipsy io is a forward-thinking company founded by ... read Chipsy io reviews & insights
NA2 - 9San Francisco, California -
We've been building custom software and app solutions for some of the world's largest companies since the 1990's. Innovation is built into our DNA, and we're here to offer it to you (innovation…not our DNA). PhD Labs is a premier application development company, providing mobile and web solutions for some of the world's largest companies.
$100 - $149/hr10 - 491998Irvine, California -
A product design and digital agency with a passion for informed, human-centered innovation, Appstem transforms complex business problems into elegant digital solutions. Leveraging a team of experts in UX/UI design and product development, Appstem partners with clients to create applications that are core to the success of their business, especially when it’s mission-critical. Since 2010, ... read Appstem reviews & insights
$150 - $199/hr10 - 492010San Francisco, California -
If you want to develop your idea with the quickest development cycles, the most reliable architecture and the confidence of knowing a marketplace is waiting for you, then you have found a partner in Cruxlab
$50 - $99/hr10 - 492010Los Angeles, California -
Radiansys Inc is a technology company based in San Francisco Bay Area. We provide technical expertise to Start-Ups, SMEs and Fortune 500 companies in United States. Radiansys offers onsite, near-shore & offshore development models and have flexibility to provide a wide range of solutions, from small projects to large and complex offshore/onshore cooperation with a ... read RadianSys reviews & insights
$50 - $99/hr10 - 492007Fremont, California -
Codebrahma is the leading development company producing the best and customized mobile applications as per the user’s specifications. Mobile web app is important for your business -Our highly-experienced team is passionate about mobile applications, and building them the right way.
< $25/hr50 - 2492012San Francisco, California -
INDE is the leading provider of screen-based Augmented Reality products and solutions and one of the leading developers of MobileAR and WebAR experiences worldwide. We have launched augmented reality systems in over 50 countries for partners and clients here in the U.S. and across the globe, including VISA, Coca-Cola, Adidas, WWF, Universal Studios, 20th Century ... read INDE reviews & insights
NA10 - 492010Los Angeles, California -
Global clients have benefitted from our expertise in delivering more than 500 customs web & mobile apps. We’re a passionate team & we do what we’re best at
NA250 - 9992006Sunnyvale, California -
SourceN is a leading Web and Mobile development firm headquartered in the heart of Silicon Valley. SourceN offers strategic consulting, creative design, and technical implementation services across three domains of expertise: Mobile, Social, & Web 2.0.
$50 - $99/hr50 - 2492003San Jose, California -
Credencys – A Trusted PIM/MDM Implementation Partner Credencys Solutions Inc., established in 2008, is a leading data management company that specializes in Product Information Management (PIM) and Master Data Management (MDM) implementation. Credencys provides brands with a consolidated setup to manage multi-domain business data such as product data, asset data, supplier data, customer data, and ... read Credencys Solutions Inc. reviews & insights
$25 - $49/hr50 - 2492008La Palma, California -
We help businesses with UX design-led digital product development. We specialize in transforming complex workflow and data-driven processes into simple user-friendly products on varied platforms, including mobile apps for iOS, Android, and web.
NA2 - 92017Walnut, California -
Curiosity was the chief driving force few years ago when we started as a bunch of 'Zens' in never ending pursuit of excellence and chose the path less travelled. Success greeted us with a price tag – hard work. It cost us hard work, productive team effort and top-notch customer satisfaction to reach at the ... read Zeniamobile reviews & insights
NA50 - 2492014Walnut, California -
Welcome to Apportunity Inc. and thanks for taking a look at what we have to offer. We are a truly dynamic team of first-rate software & web application developers in 3 majore timezones, ensuring round the clock availibity. We are able to provide you with close collaboration and responsiveness of salaried developers while adhering to ... read Apportunity Inc. reviews & insights
$50 - $99/hr10 - 491999Los Gatos, California -
We provide custom design, build, support, and maintenance services for web and mobile applications, with deep expertise in Ruby on Rails.
$100 - $149/hr2 - 92015Coronado, California -
SEO PROZ, we're an SEO firm that’s focused on providing you with the best SEO services at the price that no other SEO agency in competition can offer. Each SEO professional at The SEO PROZ practices ethical and professional SEO strategies to achieve your desired goals.
$100 - $149/hr50 - 2492018Pleasanton, California -
Wonderment Apps is a Los Angeles based agency for Website and Mobile App development, UX Design, Data Services, Product Strategy and Management. We are a boutique Southern California firm that can run scalable teams. The connection to our customers and the products we are working on always comes first. Wonderment Apps builds superior digital products ... read Wonderment Apps reviews & insights
$50 - $99/hr50 - 2492015Los Angeles, California -
WiseTREND offers high-quality OCR automation solutions to help businesses being more efficient and cost-effective in their Automation and Data Capture projects. All our document processing solutions are enterprise-mature, time-tested and available on-prem and in the Cloud. Under the hub we utilize innovative AI- based conversion and Intelligent Document Processing (IDP) OCR software solutions of ABBYY, ... read WiseTREND reviews & insights
NA10 - 492003Sunnyvale, California -
Bydrec, Inc. is a custom software development company that specializes in nearshore outsourcing. With over 17 years in the business, we leverage our expertise to bring clients increased operational efficiency and faster
NA2 - 9Pleasanton, California -
We make amazing web and mobile applications using React and React Native.
$25 - $49/hr2 - 92020Brea, California -
Whether you want to create a simple app or build the most complex mobile-based software, our skilled and experienced team can do the job. Since 2009, Tapcrew has provided ongoing support and exceptional service to ensure your product gets the most recognition in the highly demanding mobile market. We are a team of dedicated professionals ... read Tapcrew reviews & insights
< $25/hr2 - 92010San Diego, California -
Odyssey Computing is a privately held custom software and mobile app development company based in San Diego. Odyssey specializes in mobile application development, web app development, desktop app development, and enterprise software solutions. Since 1990, Odyssey’s focus has been on providing solid, functional and elegant solutions which incorporate the latest technologies and trends. Their diverse ... read Odyssey Computing Inc reviews & insights
< $25/hr10 - 491990San Diego, California -
OptimizedApps LLC is an well-known mobile app development company. Company offers various mobility solutions that includes : Enterprise Mobility, Social Networking, Payment Gateways, Mobile Commerce, Cross-platform Apps and Analytics & Reporting.
< $25/hr50 - 2492010Carlsbad, California -
With 50 years in business and a tradition of quality work, Jack Frost Design has evolved from a design agency to a full service digital agency. We strive to do the impossible for our clients while saving them thousands of dollars every year by providing new ideas, in-depth analysis and comprehensive recommendations.
< $25/hr10 - 491968Rocklin, California -
Calabria Group is an innovative and forward-looking family of companies providing unmatched Information Technology consulting, solutions, and technical services in a variety of industry specific verticals. We help our clients meet the challenges of tomorrow’s technology advances today.
< $25/hr250 - 9991995Roseville, California -
Developersdev is an Offshore web development and IT outsourcing firm based in India. With their diversified squad of developers they have aided businesses all over the globe in establishing their unique web presence on the web. EFI guarantee to serve their clients with affordable rates without compromising on quality. Developersdev provides offshore website designing and ... read Developers.Dev reviews & insights
< $25/hr1,000 - 9,9992003San Jose, California -
India App Developer is a globally known website development company India that specializes in providing excellent Website development services to businesses and start-ups in order to help them achieve high-tech digital strength with their online presence. Invest to Hire website developers India for website development to create a web presence that captures your clients' hearts. ... read IndiaAppDeveloper reviews & insights
NA10 - 49San Jose, California -
AppStone Lab Technologies, founded in 2015 by two extremely passionate and determined partners, is one of the most leading and developing software companies. We serve patronage across the countries offering the below range of services: Mobile app development, IOS & Android, Flutter, PHP, Laravel, WordPress and JavaScript HTML, CSS, Javascript, Bootstrap, jQuery, AJAX Machine Learning, ... read AppStoneLab Technologies reviews & insights
$50 - $99/hr10 - 492015Sunnyvale, California -
Techlexity is a full-stack design and development team that builds complex mobile applications, progressive web applications, crypto & Web3 projects. Over the past three years, we’ve worked with successful startups to deliver fantastic user experiences and help businesses adapt to the ever-changing digital world by using innovative technologies and next-gen expertise.
$25 - $49/hr10 - 492019Glendale, California -
Here at MLC, we follow a holistic approach that links strategy to execution. From simple to complex, we hit the ground planning with the right team, methodology, and resources for your project. Our process allows us to objectively look at the total organization and the impact every initiative will have on the enterprise, allowing you ... read MLC Management Consulting reviews & insights
NA2 - 9Irvine, California -
Crowdbotics makes it faster than ever to build complete, scalable apps for business. With Crowdbotics, professionals can turn ideas into real code using a matched library of components and a network of on-call experts. Crowdbotics references a library of millions of production-grade software packages to identify the most effective components and workflows for a given ... read Crowdbotics reviews & insights
< $25/hr10 - 492016Berkeley, California -
Tek-Connect has been building custom Web applications for years. Our Silicon Valley team is experienced, strategic in their thinking, and tactical in their implementation. We focus on results and business impact.
NA2 - 9Cupertino, California -
Think AI is a trusted strategic partner for enterprise thought leaders who need to solve complex business problems using modern technologies including AI, business intelligence and chatbots
NA50 - 249Irvine, California -
At HireMobileDevelopers, we stand as vanguards of technological innovation, specializing in tailoring web and mobile App solutions to meet a myriad of business demands. Whether serving burgeoning startups or established industry titans, our commitment remains unwavering: to furnish unmatched, budget-friendly solutions that surpass expectations and foster client satisfaction.
$25 - $49/hr50 - 249Temecula, California -
At AppStack Studios, we turn your bold digital vision into powerful, scalable solutions—delivered on time, aligned with your brand, and built to exceed expectations. From strategy to execution, we’re the technology partner you can trust to drive innovation, impact, and long-term growth. AppStack Studios delivers world-class digital solutions with a global reach. Our team and clients span ... read Appstack Studios reviews & insights
$200 - $300/hr50 - 2492024Los Angeles, California -
YourAppHero isn’t just a name — it’s a promise. We craft apps that make life easier, businesses stronger, and users happier. From startups to enterprises, we help brands shine with apps that combine sleek design, smooth performance, and cutting-edge technology.
$50 - $99/hr50 - 2492019Pasadena, California -
CodeZone is a leading software development company based in Azerbaijan, providing innovative digital solutions for businesses worldwide. With over 10 years of experience, our team specializes in web development, mobile app creation, UX/UI design, and logistics automation systems. We have built advanced cargo management platforms, e-commerce systems, and enterprise software trusted by top local and ... read Codezone reviews & insights
$50 - $99/hr10 - 492015Los Angeles, California -
PeachCoders is a leading digital solutions company dedicated to helping businesses thrive in the digital era. Based in the USA, we specialize in Digital Marketing and Mobile App Development, delivering innovative strategies and custom solutions that drive growth, enhance customer engagement, and maximize ROI. Our team of experts combines creativity, technology, and data-driven insights to ... read Peach Coder reviews & insights
$200 - $300/hr10 - 492020San Francisco, California -
Digital Octane - Web & Mobile App Development Agency Digital Octane (https://digitaloctane.co/team/) is a digital agency that provides complete web and mobile app development services. We help businesses and startups build innovative, high-performing websites and apps that deliver real results. Our team combines web development, design, and software engineering to develop customized digital solutions. We ... read Digital Octane reviews & insights
$25 - $49/hr10 - 492013Beverly Hills, California -
Using AI Tools
-
ChatGPT
-
Lovable
-
Claude
Make it happen stands at the intersection of strategy consulting and custom software development to help you make the most of digital transformation. AI Transformation Mobile & Web Strategy first High End Solutions Art & Aesthetics at the core
$25 - $49/hr10 - 492019Irvine, CaliforniaWhy Make it Happen Art & Tech?
- 15 years of Proven Methodology
- Absolute Best Value to Price ratio
- Tech is the vehicle, but we Optimize for Business
-
-
Product design & development house, is a team of data-informed and results-driven entrepreneurs that help rapidly-growing startups and enterprises succeed.
$50 - $99/hr10 - 492007San Francisco, California -
Tivix is a software consulting firm headquartered in Silicon Valley San Francisco. We build innovative digital products and platforms for our clients. Tivix has deep expertise in building innovative solutions for our clients. We've developed new digital applications for clients in the financial services and real estate sectors; we've helped billion-dollar companies to build new ... read Tivix reviews & insights
$150 - $199/hr50 - 2492008San Francisco, California -
Infobahn specializes in full-lifecycle project and consulting efforts conducted in strategic partnership with some of the world's most prominent companies. Infobahn provides a broad range of IT consulting services leveraging Onsite, Offsite and Offshore models. Our Management Team is experienced having created and nurtured professional services and consulting teams to deliver quality solutions to Fortune ... read Infobahn Softworld Inc reviews & insights
< $25/hr250 - 9991996San Jose, CaliforniaHighly unprofessioanl and unstructured
- Jasmeet Kaur, Account Manager at Pyramid Consulting, Inc -
The Designs Avenue is your ultimate route to branding and growth. Our years of experience in the field has given us enough exposure to analyze and escalate any business through target-based designing elements. Our designs are strategized and created by the industry’s top, leaving no room for doubt
NA10 - 49Hawthorne, CaliforniaHORRIBLE BUSINESS
- Matthew Topete -
Innovation is limitless. As Apple continues to introduce new technologies, there’s never been a better time to develop for the best platforms on the planet. iOS, watchOS, OS X, and tvOS, with their remarkable appeal and broad user base, are the best platforms for your product. These modern platforms bring together advanced technologies such as Siri, ... read INVASIVECODE reviews & insights
$200 - $300/hr10 - 492008San Francisco, California -
Akshar Technologies is one of the most reliable Software Development Company. We develop high-quality mobile apps for iOS and Android platform. Our website solutions include responsive website design with Seo services. Talking about the list of technologies we serve are iPhone app development, PHP web development, WordPress website development, Magento and much more. So, we ... read Akshar Technologies reviews & insights
< $25/hr10 - 491970Santa Monica, California -
Loka is a web services company that builds innovative mobile and web applications for startups and some of the world’s largest brands, including Coca-Cola, Dyson, Frito Lay, Gatorade, Marriott, and Novartis. We’re located in the heart of Silicon Valley, surrounded by startups of every size and type. Our close proximity to technology luminaries such ... read Loka, Inc reviews & insights
$25 - $49/hr10 - 491992San Francisco, California -
New Leaders is a creative and technical services firm based in California. Our goal is to design, build and launch web & mobile business software products that lead to remarkable improvements in company performance, employee effectiveness, and customer happiness. We are hell bent on making the process fast, friendly and affordable. No catch. We love ... read New Leaders reviews & insights
$150 - $199/hr10 - 492007Truckee, California
Confused about which partner to choose?
Let our experts study your requirements and send a curated list of trusted companies.
Get a shortlistWhy Trust Goodfirms
Goodfirms is the world’s leading reviews and ratings company featuring 110,000+ tech companies from across the globe, complete with 80,000+ humanly vetted client reviews, detailed portfolios, hourly rates, employee strength, and more to help you choose your perfect tech partner.
Humanly-Vetted Client Reviews
Our researchers have personally vouched for the authenticity of 80,000+ client reviews by speaking directly with clients, cross-checking project details, timelines, and results to ensure 100% credibility.
Data-Driven Rankings
Data powers our company listings. Every company listed is evaluated based on its expertise, experience, market presence, reviews, and client satisfaction rate, which helps buyers confidently choose the right tech partner.
Global Trust & Recognition
Goodfirms is trusted by 110,000+ businesses in 160+ countries to connect with reliable tech partners. Our reputation is built on 80,000+ verified reviews and rankings you can trust.
Transparency In Detail
From verified client reviews and portfolio highlights to service focus and pricing, Goodfirms provides a 360-degree view of every company, helping 2+ million monthly users find the perfect tech partner.
Trending insights from Goodfirms
Valuable insights from top experts accelerate decision-making.
From Goodfirms Search to $124K in Client Revenue: A Plavno Case Study
See how Plavno built an AI retail personalization platform that delivered 94.2% recommendation accuracy and $124,500 in revenue lift — a Goodfirms case study.
White-Label Neobanks 2026: Honest Cost & Build Breakdown
Launch a digital bank in 6–12 weeks! Discover the honest cost to build a neobank in 2026.Scale with AI and embedded finance.
Healthcare App Development in 2026: Types, Features, Process & Real Costs Explained
Planning a healthcare app in 2026? This guide breaks down types, must-have features, the build process, HIPAA compliance, and real cost ranges, backed by current market data.