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
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Western Web & App Studios is a leading provider of web and app design services that help businesses create exceptional digital experiences. As Your Business Creators, we work closely with our clients to tailor our services to their unique needs and deliver high-quality, affordable solutions that exceed their expectations. Our team of experienced designers and ... read Western Web Studios reviews & insights
$25 - $49/hr10 - 49San Jose, California -
We create vocal, memorable and high-performing websites that effectively communicate your brand messaging. We prove long-term benefits for companies that prioritize quality and want to stand out from their competitors.Our dedicated team of marketing and design experts is available round-the-clock to ensure your success never faces a hurdle. Need assistance? We're just a call or ... read Exolute Media reviews & insights
$25 - $49/hr2 - 9San Diego, California -
Eric Rawn started BCT Consulting, Inc. as a single-person technology consulting firm. Since then, the company has grown to 100+ employees to help support the needs of our clients and business affiliates. Our goal is to keep our clients efficient and effective in their business while maintaining technology and equipment at a price that is ... read BCT Consulting reviews & insights
$25 - $49/hr2 - 9Fresno, California -
Welcome to Nearcode! We are the trusted nearshore IT company to boost your teams through staff augmentation and custom product development. We are obsessed with quality in everything we do and are convinced that the success of your organization is our success. Some key points in our history: +𝟯𝟬 𝘀𝘂𝗰𝗰𝗲𝘀𝘀𝗳𝘂𝗹 𝗜𝗧 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀 +𝟭𝟬𝟬 𝘁𝗼𝗽 𝗜𝗧 ... read Nearcode reviews & insights
$50 - $99/hr10 - 49San Francisco, California -
Brain Studioz is an innovative digital powerhouse that fuels businesses with cutting-edge solutions and exceptional online experiences. Our talented team of web wizards, marketing gurus, and software savants work together to craft tailored solutions that help you soar to new heights and achieve your online ambitions.Building a successful business can be a challenging journey, but ... read Brain Studioz Digital Agency reviews & insights
$25 - $49/hr2 - 9San Francisco, California -
We're here to help you nail that big project — working side by side to turn your complex challenges into clear paths forward, with the software development expertise to support every step. Since 2008 Lab Zero has delivered software products that launch some of the world’s most recognizable brands like Ancestry.com, Visa, Autodesk (and more) ... read Labzero reviews & insights
$25 - $49/hr10 - 492008California City, California -
G360Technologies supports a logistics supplier in the implementation of Microsoft SQL Server Enterprise Edition. The team is migrating the client's apps and configuring them to work in a UAT environment.Our Global Delivery model sets us apart by offering scalable and efficient technology solutions to our clients. This approach not only allows for around-the-clock productivity but ... read G360 Technologies reviews & insights
$50 - $99/hr50 - 2492010California City, California -
TopSyntax is a Silicon Valley based Remote Talent Management Company that provides supplemental IT resources to organizations of all sizes. We strive to build long-lasting and trusting relationships that provide the support, guidance, and security necessary to succeed.
$50 - $99/hr50 - 2492018Fremont, California -
At Bloorsoft, we specialize in transforming your startup’s vision into fully-functional applications that your users will love. From the initial concept to the final product, our team of experts is dedicated to creating software that not only meets your technical requirements but also resonates deeply with your target audience.We understand that in today’s fast-paced startup ... read Bloorsoft reviews & insights
$100 - $149/hr2 - 92022San Francisco, California -
Camp Creative is a digital marketing and branding agency that believes the right user experience, delivered the right way, at the right time, cultivates relevant and meaningful connections between brands and people.
$50 - $99/hr10 - 491999Sacramento, California -
Welcome to Bizople, your trusted partner for all Odoo-related solutions! We specialize in delivering comprehensive Odoo services tailored to businesses of all sizes. Whether you need Odoo implementation, customization, integration, module development, or support, our expert team ensures seamless solutions that empower your business operations.With years of experience and a passion for innovation, Bizople helps ... read Bizople reviews & insights
$50 - $99/hr10 - 492016California City, California -
iSearch By City is an Orange County SEO company that focuses on giving service-based businesses custom-designed websites that are affordable, professional, and powerful. By following today’s leading online marketing techniques--from developing original, keyword-rich content to converting desktop sites into mobile-friendly, responsive web design sites--we are very successful at helping our clients appear on page one ... read iSearch By City reviews & insights
NA10 - 492010San Juan Capistrano, California -
TRAPNSTUDIO, a software development company established in 2023 and based in Southern California, USA, specializes in crafting premium custom software solutions. Founded by a seasoned software architect with over a decade of experience and a UC San Diego degree in Computer Science with a focus on Human-Computer Interaction, the company emphasizes quality, efficiency, and user-centric ... read Trapnstudio reviews & insights
NA2 - 92023Riverside, California -
At Website Online Help, we help your brand make an impact with bold, memorable designs. We create custom websites that are easy-to-use and reflect your brand’s unique identity. WOH's websites, logos, and designs are crafted to grab attention and engage your audience. Our Services: Custom web design and development Unique logo design Creative graphic designs ... read Website Online Help reviews & insights
$25 - $49/hr10 - 492024Los Angeles, California -
At SaverStride Software Development, we specialize in crafting innovative, scalable, and high-performance digital solutions. Our expertise spans custom software development, AI-driven applications, blockchain solutions, cloud-based platforms, and cutting-edge mobile app development. We build seamless, user-friendly mobile applications for iOS and Android, leveraging the latest technologies to ensure smooth performance, intuitive UI/UX, and business-driven functionality. Whether it's a native, hybrid, or cross-platform app, we deliver ... read SaverStride LLC reviews & insights
< $25/hr10 - 492022San Francisco, California -
Empaxis is a trusted partner specializing in serving the investment management industry. Our mission is to deliver customized, technology-driven outsourcing solutions that optimize operations and foster success for technology providers and investment managers alike. Operating at the intersection of Financial Technology (FinTech), Artificial Intelligence (AI), and Investment Operations, Empaxis offers industry-specific, data-centric solutions aimed at ... read Empaxis reviews & insights
$50 - $99/hr50 - 2492004El Segundo, California -
Code Particle: AI-Enhanced Software Development At Code Particle, we believe the future of software is built through human + AI collaboration. Our developers work side-by-side with AI systems to accelerate delivery, reduce risk, and unlock possibilities that traditional development simply can’t achieve. Founded in 2008 by pioneers in internet and video game software, we’ve always ... read Code Particle reviews & insights
$100 - $149/hr10 - 492008Culver City, California -
ConnectDevs is an AI recruiting platform that transforms how companies discover, evaluate, and connect with talent. Using natural-language search across an 800M+ candidate database, ConnectDevs instantly understands your hiring needs and surfaces the most relevant profiles with AI-generated summaries, experience insights, and intent signals. Beyond search, it enables you to run AI-driven interviews tailored to ... read Connect Devs reviews & insights
$25 - $49/hr2 - 92024San Francisco, California -
Looking to hire a computer vision engineer who delivers quick results? At BOSC Tech Labs, we build smart, AI-powered software that solves real-world problems—fast. Whether it’s automating quality checks in manufacturing or creating intelligent image recognition tools, our skilled team helps businesses grow through custom solutions. As an AI-focused software development company, we make sure ... read BOSC Tech Labs reviews & insights
$25 - $49/hr50 - 2492019Burbank, California -
Our vision is to enable customers to utilize emerging technologies while achieving efficiencies of scale. Our expert team comes with experience in the cutting edge - DevOps, Blockchain, Smart Contracts, AI, ML, NLP. Started as Risva Rachna in the year 2018, Samuchit was created as a platform to engage with the United States and Europe ... read Samuchit reviews & insights
< $25/hr10 - 492019San Diego, California -
NXPRO – Digital Marketing & SEO Solutions to Grow Your Brand NXPRO is a full-service digital marketing agency that helps businesses thrive online through smart strategy, creative content, and performance-driven SEO. We specialize in building strong digital footprints that generate traffic, leads, and real results. From social media marketing and paid ads to search engine ... read Next Generation Professionals reviews & insights
$50 - $99/hr10 - 492002San Jose, California -
pwhizz Technologies is a forward-thinking web development company specializing in cutting-edge solutions powered by GoLang microservices, crypto trading bot development, custom web applications, and seamless API integrations. Our team of experienced developers, engineers, and tech strategists are committed to building high-performance digital systems that solve complex business challenges and enhance operational efficiency. At Zapwhizz, we ... read Zapwhizz Technologies reviews & insights
$25 - $49/hr2 - 92024Rancho Cordova, California -
Helport.ai is a Nasdaq-listed AI-powered BPO and customer operations platform that combines enterprise-grade artificial intelligence with human expertise to deliver scalable, compliant, and performance-driven customer engagement solutions. It provides three core capabilities in a unified system: AI Copilot, which transcribes calls in real time, generates instant reply suggestions, and guides agents using a company’s own ... read Helport.ai reviews & insights
$50 - $99/hr1,000 - 9,9992020San Diego, California -
We’re not just another Web Development Agency, we’re the architects of digital domination. Code 9 Web Studios is where bold ideas, cutting-edge tech, and flawless execution collide to create digital experiences that don’t just exist but lead. From high-impact websites to next-gen mobile apps, we craft solutions that engage, convert, and scale. We don’t do ... read Code 9 Web Studios reviews & insights
NA50 - 2492015Los Angeles, California -
HeavenMark is an award-winning digital agency dedicated to transforming ideas into impactful online experiences. With expertise spanning website design, e-commerce, app development, branding, and social media strategy, HeavenMark helps businesses build strong digital identities that drive growth. Their team blends innovative design with data-driven marketing to craft solutions that are visually captivating, user-focused, and performance-oriented.
NA10 - 492025Newark, California -
Logo Cosmic is your comprehensive creative and digital agency, providing end-to-end solutions for brand authority and market growth. We establish your visual identity through expert Logo Design Solutions, professional Illustration Design, and cohesive Corporate Branding. Our development expertise covers Web Design Solutions, robust eCommerce Website Solutions, and custom Mobile Applications. To fuel your brand's narrative, ... read Logo Cosmic reviews & insights
$25 - $49/hr250 - 9992010Los Angeles, California -
Sequoia Applied Technologies is a technology solutions company that helps enterprises design, build, and scale intelligent digital systems across complex and regulated industries. We partner with organizations to solve critical business challenges through modern software engineering, data-driven platforms, and connected technology solutions. Our expertise spans Healthcare, Manufacturing, Semiconductors, and IoT, where reliability, performance, and scalability ... read Sequoia Applied technologies reviews & insights
NA250 - 9992016Santa Clara, California -
Digital Foundry is a boutique software engineering firm headquartered in Tiburon, California, with more than 30 years of experience designing and building complex digital systems for enterprise and government organizations. We specialize in three core areas: custom software development, AI-enabled product and agent system development, and the modernization of mission-critical legacy systems. Our model is ... read Digital Foundry, Inc. reviews & insights
NA50 - 2491992Tiburon, CaliforniaWhy Digital Foundry, Inc.?
- Passionate builders advancing technical thinking
- Strategy, design, and code in one team
- Trusted for complex, high-stakes software
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Using AI Tools
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Claude
We Don't Do Tricks. We Do Pixel Perfect Magic. Abra is about turning ideas into purposeful websites derived from the Aramaic 'Abracadabra', meaning "I create as I speak". From Shopify and WordPress to custom solutions, we've built everything from full-featured e-commerce sites and corporate websites to landing pages, portfolios, and more. Why let important tasks ... read Abra reviews & insights
$100 - $149/hrFreelancer2005Los Angeles, CaliforniaWhy Abra?
- Development experts with over 20 years experience
- Personal, trustworthy and friendly
- High quality
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Using AI Tools
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ChatGPT
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Canva
As a full-service digital product agency, we unite a team of strategists, designers, developers, and marketing experts committed to delivering impactful and user-centric digital experiences. 8pxfarm is a results-driven digital agency and web design company based in California, US. We specialize in transforming innovative ideas into powerful digital products that fuel business growth.
< $25/hr10 - 492015Sausalito, CaliforniaWhy 8pxfarm?
- Client - First
- High Quality
- Design and Develop for Enterprises Brands
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Using AI Tools
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ChatGPT
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Claude
ThinkDatum Scalable Technology for a Smarter Enterprise. ThinkDatum is a modern software development company delivering scalable, high-performance solutions for businesses of all sizes. We specialize in AI-powered applications, enterprise platforms, and custom software tailored to solve real-world challenges. By leveraging advanced technologies and a results-driven approach, we help organizations streamline operations, enhance efficiency, and accelerate ... read ThinkDatum reviews & insights
$100 - $149/hr10 - 492025California City, CaliforniaWhy ThinkDatum?
- Scalable, high-performance solutions
- End-to-end development services
- Future-ready technology stack
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Pro Lead Soft is the pioneer in development apps. Contact us now to get quote of average cost of app development.
< $25/hr50 - 2492012Daly City, California -
Exadel is a software engineering company that provides a full gamut of software services along with products by drawing on a global pool of skills. The company primarily provides custom software applications for businesses on a project basis with an emphasis on mobile applications.
$50 - $99/hr250 - 9991998Walnut Creek, California -
Seamgen is San Diego’s premier digital product agency, dedicated to positively impacting the lives and experiences of individuals through the implementation and utilization of design and technology. We integrate digital experiences across mobile and web environments resulting in meaningful interactions for users. Our team specializes in full-stack development and we are experts in user experience ... read Seamgen reviews & insights
$100 - $149/hr50 - 2492008La Jolla, California -
We are Yeti, a San Francisco based development studio dedicated to creating great user experiences that satisfy the business needs of our clients. We specialize in cross-platform applications that excel in mobile and web environments using an open-source, cloud-based development platform. Our system enables quick and cost-effective deployment of robust applications.
$150 - $199/hr10 - 492011San Francisco, California -
Q-vantage is California based fast growing Website and Mobile application IT firm, which has been serving their customers with reliable services since 2004. Qvantage specialize in mobile app development, website development, E-commerce, web apps, SEO, & mobile marketing. We offer fast delivery and instant consultation solutions to our clients at affordable price. Our team has passionate ... read Q-vantage Irvine reviews & insights
< $25/hr10 - 492004Riverside, California -
Andolasoft offers complete digital product development services for businesses of any size. Our approach is designed to achieve an optimal combination of functionality and user experience, resulting in a unified ecosystem across the organization. Leveraging industry-leading technologies such as WordPress, WooCommerce, PHP, CakePHP, Python, JavaScript, AngularJS, ReactJS, NodeJS, Flutter, iOS and Android we are able ... read Andolasoft Inc. reviews & insights
$25 - $49/hr50 - 2492009San Jose, California -
We’ve been developing Augmented Reality and Virtual Reality Software and knowledge transfer solutions since 1999. Our AVR Platform is a premiere suite of AR & VR products serving enterprise or education. This premiere suite consists of three products - Creator AVR, Virtual Trainer, and AR Assist. To carry this out, we have spent the last 20 ... read EON Reality reviews & insights
$100 - $149/hr250 - 9991999Orange County, California -
Over the last decade, Barefoot has grown into a full-service interactive agency that creates and manages first-class digital products across a wide range of industries. Featuring a diverse team of UI/UX designers, software engineers, system architects and project managers, at Barefoot we pride ourselves on hard work and innovative products that push the edges of ... read Barefoot Solutions reviews & insights
$100 - $149/hr10 - 492005San Diego, California -
Eurisko is a multi-national software development and consultancy firm based in UAE, Saudi Arabia, Lebanon, Cyprus and US. With more than 13 years of experience and hundreds of success stories, Eurisko offers services ranging from Mobile App Development, Enterprise Web Development and Artificial Intelligence, to Game Development, Mixed Reality, UI/UX Design and Smart Cities / ... read Eurisko reviews & insights
$50 - $99/hr50 - 2492010Santa Clara, California -
Vincit is the only custom software company who offers its clients a 100% Satisfaction Guarantee. Our 500-employee design, software and strategy company is located in Orange County, Santa Monica and Palo Alto in California, and in Finland. We engineer Mobile Apps, Web Services, and Embedded Systems, and work with companies like GE, Logitech, Nokia, The ... read Vincit reviews & insights
$100 - $149/hr250 - 9992007Irvine, California -
SFWP Experts offers you a one stop platform where you get cost-effective Wordpress solutions. We are . We create business oriented websites that are comprehensive, highly responsive, and easily maintainable that reflects all of our WordPress development expertise. Our team works in collaboration with developers, designers and writers to build up high quality websites at ... read SFWP Wordpress Experts reviews & insights
NA10 - 492017San Francisco, California -
Cloud1Marketing is recognized as being an industry leader and one of the most influential forces in internet marketing and online brand name development. We can customize an internet marketing strategy that fits your business and delivers the results you expect.
NA2 - 92012Fresno, California -
Hundred10 is an award-winning design and development studio specializing in responsive content-managed websites and custom web & iOS applications. We’re passionate strategists, designers and developers with a specific and fine-tuned set of skills–if you’re looking for an ad agency, you’ve come to the wrong place. With decades of combined experience, we bring a tremendous amount ... read Hundred10 reviews & insights
NA2 - 91997Fresno, California -
AppTech Corp. is a FinTech company with a foundation in electronic processing technologies and merchant services, and has expanded its core merchant processing services to include enterprise-grade, patent-protected software and intellectual property for advanced text messaging incorporating the ability to transact payments via secure text messaging based on NSA technology, SMS text messaging for notification, ... read AppTech reviews & insights
NA10 - 492006Santa Rosa, California -
VOLANSYS, an ACL Digital Company, is an ISO 9001:2015 certified, next generation Digital Transformation and Product Realization, company, which acts as a ‘single stop solution enabler’ to bring your ideas to life. VOLANSYS has evolved into 500+ passionate and curious engineers serving 50+ clients globally, and is growing fast. Our technical domain strengths, innovative approach, out-of-the-box thinking, and adherence to on-time delivery with ... read VOLANSYS (An ACL Digital Company) reviews & insights
$50 - $99/hr250 - 9992008San Jose, California -
We design beautiful, easy-to-use websites and apps, inspired first and foremost by the people who use them. We're listeners and problem solvers. We take the time to understand you, your business and your users, so we can create custom solutions that address your biggest challenges and goals. Our ideal clients are forward thinking businesses and ... read Websauce Studio reviews & insights
$50 - $99/hr2 - 92012Sacramento, California -
Black Flag Creative is a web and mobile app agency anchored in Sacramento, California. We specialize in UX/UI design, web design, web development, iOS apps, Android apps, SEO, CRMs, brand identity and photography. We are passionate in offering our skills to help everyone from growing startups to Fortune 500 companies. Black Flag Creative is part of ... read Black Flag Creative, LLC reviews & insights
$100 - $149/hr10 - 492016Los Angeles, California
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