Top 100 Mobile App Developers in California
The Best of August 2026Looking for a top mobile app development company in California?
Building a mobile app is expensive. In fact, it can cost $10,000 to $150,000, unless you want an out-of-the-box solution with a DIY app builder. So, choosing the right app developer is important because it can save you time and money and result in an app that makes your business stand out.
As you begin the process of hiring an app development company, remember to define the type of app you want before starting conversations with developers. How complex your app idea is will determine your budget and the skill level you need in an app developer. Then, once conversations begin, ask for portfolio items, reviews, and references. Be sure to bring up timeline, too, so you align on expectations.
Overall, with about 90% of time on mobile spent in apps, investing in a mobile app for your business may help attract customers and get your brand in front of more people.
To assist you in your search for a partner, we’ve compiled this list of the top mobile app developers in California. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
Jump to Most Reviewed Companies
List of the Best California Mobile App Development Companies
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631$10,000+10 - 49 employeesPalo Alto, CASeroft.com, a small software development firm, is headquartered in Palo Alto, California and London, England. The team provides Custom Software Development and Mobile App Development.Read More
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632$10,000+50 - 249 employeesSacramento, CASoftenix is a software development company. They specialize in Custom Software Development and Web Development and were founded in 2010. The company is in Sacramento, California.Read More
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633$1,000+50 - 249 employeesSunnyvale, CAContent Marketing company The Web Coders Agency is based in Sunnyvale, California. Their services include Content Marketing and Mobile & App Marketing.Read More
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634Undisclosed10 - 49 employeesMenlo Park, CAFLYING COW DESIGN is a branding agency. They are located in Menlo Park, California, and their services include Branding and Web Design.Read More
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635$250,000+10 - 49 employeesSan Francisco, CAMilkinside is an UX design company. Launched in 2018, the team specializes in UX/UI Design and Product Design.Read More
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636$1,000+10 - 49 employeesLos Angeles, CAMOBIZEAL Apps is a web design company established in 2012. The team specializes in Web Design and UX/UI Design.Read More
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637$1,000+2 - 9 employeesLos Angeles, CAGrafx apps is a website development company. Founded in 2019, the team offers Web Development and UX/UI Design.Read More
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638$50,000+2 - 9 employeesSan Francisco, CABitmatica, an user experience company, is located in San Francisco, California. They specialize in UX/UI Design and Web Design and were established in 2012.Read More
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639$10,000+50 - 249 employeesSan Francisco, CAProximity Works is an AI development company located in San Francisco, California and Palo Alto, California. They provide Artificial Intelligence and Generative AI and were launched in 2019.Read More
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Nasdaq ESPN Disney+ HotStarIndustries
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640$1,000+10 - 49 employeesSan Francisco, CAMindexa is a San Francisco, California-based branding firm. They offer Branding and Web Design and were established in 2015.Read More
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641$5,000+2 - 9 employeesSacramento, CAWebjetx, a branding agency, was launched in 2021. The agency specializes in Branding and UX/UI Design, and is small.Read More
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642$1,000+2 - 9 employeesSan Leandro, CAFounded in 2023, Frank Dev LLC is a branding company. Located in San Leandro, California, the team specializes in Branding and BI & big data consulting & SI.Read More
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643$25,000+2 - 9 employeesIrvine, CACybersecurity company GoatBytes.IO is located in Irvine, California. Their services include Cybersecurity and Mobile App Development.Read More
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644$1,000+2 - 9 employeesLos Angeles, CAContent Marketing company Driftera is based in Los Angeles, California and San Francisco, California. Their services include Content Marketing and Custom Software Development.Read More
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645Undisclosed2 - 9 employeesSanta Rosa, CASolorio designs is a web design agency. The team is headquartered in Santa Rosa, California, and their services include Web Design and Custom Software Development.Read More
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646$5,000+2 - 9 employeesGlendale, CAInfinitaq, a SEO agency, is in Glendale, California. Their services include Search Engine Optimization and Web Design.Read More
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647$1,000+2 - 9 employeesIrvine, CAMake it happen Art & Tech is an Irvine, California-based software development firm. They offer Custom Software Development and Web Development and were established in 2020.Read More
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648$5,000+2 - 9 employeesLake Forest, CAUX design agency Golden Leap Solutions was launched in 2016. The team offers UX/UI Design and Custom Software Development and is in Lake Forest, California.Read More
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649$250,000+2 - 9 employeesLos Angeles, CAThe Web Maker Pro is an user experience company founded in 2024. The small team focuses on UX/UI Design and Custom Software Development.Read More
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650$1,000+2 - 9 employeesBeverly Hills, CAFounded in 2025, Lecobyte is a SEO services firm. Their services include Search Engine Optimization and Web Design.Read More
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651$5,000+2 - 9 employeesDiamond Bar, CANG Technology LLC is a SEO company. The company is headquartered in Diamond Bar, California. Their services include Search Engine Optimization and Web Design.Read More
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652$5,000+2 - 9 employeesSan Francisco, CAScott Street is a custom software development company. They were established in 2025 and offer Custom Software Development and Mobile App Development.Read More
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653Undisclosed2 - 9 employeesIrvine, CAKare Information Technologies is a software development company established in 2026. The team offers Custom Software Development and Web Development.Read More
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654$5,000+10 - 49 employeesHuntington Beach, CARipcord Digital Inc. Is a custom software development firm. Established in 2010, their team focuses on Custom Software Development and UX/UI Design.Read More
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655Undisclosed10 - 49 employeesSan Francisco, CAFounded in 1987, Langtech is a small IT managed services company. Their services include IT managed services and Custom Software Development.Read More
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656$1,000+10 - 49 employeesLos angeles, CAContent Marketing company Brandvault360 is located in Los angeles, California. They provide Content Marketing and E-Commerce Development.Read More
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657$1,000+10 - 49 employeesFremont, CAEInnoSys is a software development firm. The team is located in Fremont, California and Ahmedabad, India, and their services include Custom Software Development and Search Engine Optimization.Read More
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658$1,000+10 - 49 employeesSan Jose, CALaunched in 2018, Shubpy Solutions Pvt Ltd is a custom software development company. The small team focuses on Custom Software Development and Search Engine Optimization.Read More
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659$5,000+10 - 49 employeesSanta Clarita, CAEstablished in 2018, IIInigence LLC, a small branding firm, is in Santa Clarita, California. Their services include Branding and Web Design.Read More
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660$50,000+10 - 49 employeesSan Francisco, CAKnife and Fox is a San Francisco, California-based branding firm. They focus on Branding and Web Design and were launched in 2014.Read More
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