Top 100 Mobile App Developers in California
The Best of October 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.
List of the Best California Mobile App Development Companies
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991$5,000+10 - 49 employeesTracy, CABlockWoods Marketing Management is an Advertising company in Dubai, United Arab Emirates and Chennai, India. Established in 2023, the team focuses on Advertising and Branding.Read More
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992$10,000+50 - 249 employeesSan Francisco, CADesignli is a Greenville, South Carolina-based mobile application development firm. The midsize team specializes in Mobile App Development, Custom Software Development, UX/UI Design, and Artificial Intelligence and was established in 2013.Read More
Clients
Michelin Goodwill SouthernFirst Bank EarthLinkIndustries
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993$5,000+250 - 999 employeesSan Francisco, CARead More
Zazmic Inc. is a digital agency that is headquartered in San Francisco with an office Dnipro, Ukraine. It was founded in 2014 and has more than 100 employees who specialize in web development, mobile app development, UX/UI design, mobile & app marketing, and email marketing.
Clients
Rakuten Boostr Valassis UpChooseIndustries
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994Undisclosed10 - 49 employeesLong Beach, CACloud Advisory LLC is an application development company founded in 2011. The small team offers Mobile App Development and Web Development.Read More
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995$10,000+250 - 999 employeesSan Jose, CARead More
Trajectus, a web design agency, is based in Southfield, Michigan and San Jose, California. They provide web design, e-commerce development, enterprise app modernization, application management & support, and more and were founded in 2015.
Industries
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996Undisclosed10 - 49 employeesPleasanton, CAXTENDLY is a web development company. The team is headquartered in Pleasanton, California, and their services include Web Development and Mobile App Development.Read More
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997Undisclosed50 - 249 employeesDublin, CAUser experience company Canvendor is based in Dublin, California and Chennai, India. The team provides UX/UI Design and IT strategy consulting.Read More
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998$25,000+50 - 249 employeesSan Francisco, CARead More
UX design agency webkeyz is headquartered in San Francisco, California and Cairo, Egypt. The small agency was established in 2009. Their services include ux/ui design, product design, and branding.
Clients
MicrosoftIndustries
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999$1,000+10 - 49 employeesSanta Ana, CAVibgyorweb Technologies Pvt Ltd is a social media marketing firm established in 2020. Their services include Social Media Marketing and Search Engine Optimization.Read More
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1000$1,000+10 - 49 employeesDublin, CAOpal Infotech INC is a SEO company. They are based in Dublin, California. Their team provides Search Engine Optimization and Pay Per Click.Read More
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1001Undisclosed2 - 9 employeesLos Angeles, CAFrothlogic, a software development firm, offers Custom Software Development and Mobile App Development. The firm is located in Los Angeles, California.Read More
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1002$10,000+10 - 49 employeesWestminster, CASoftware development firm MLTech Soft was launched in 2020. Their small team is located in Ho Chi Minh City, Vietnam; Singapore, Singapore and Westminster, California and focuses on Custom Software Development, IT managed services, Artificial Intelligence, Enterprise App Modernization, and more.Read More
Clients
PSA Marine Private Limited Unilever Vietnam International Company Limited Lof International Dairy Products Joint Stock Company Yen Viet Joint Stock CompanyIndustries
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1003$1,000+250 - 999 employeesSan Jose, CAFounded in 2015, InfoStride is an app development company. The firm focuses on Mobile App Development, Web Development, Web Design, Custom Software Development, and more and has a midsize team.Read More
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1004$10,000+50 - 249 employeesSunnyvale, CAIT strategy consulting company TransformHub was established in 2019. The team specializes in IT strategy consulting and UX/UI Design and is based in Singapore, Singapore and Sunnyvale, California.Read More
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1005$25,000+10 - 49 employeesSan Clemente, CAAdapt360, a software development company, offers Custom Software Development and Web Development. The company is in San Clemente, California.Read More
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1006Undisclosed10 - 49 employeesCulver City, CAFounded in 2014, TRINE is a small Event Marketing company. Their team provides Event Marketing and Web Development.Read More
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1007Undisclosed10 - 49 employeesSan Francisco, CAWebloon Studio is a San Francisco, California-based web design agency. Their services include Web Design and Mobile App Development.Read More
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1008Undisclosed10 - 49 employeesCorona, CASunztech Intl, a web design company, is located in Corona, California. Their services include Web Design and UX/UI Design.Read More
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1009$10,000+2 - 9 employeesRowland Heights, CAClockCode, a software development company, is based in Rowland Heights, California. Their services include Custom Software Development and Web Development.Read More
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1010$1,000+10 - 49 employeesLos Angeles, CAMoonDive LLC, a software development company, was established in 2022. The small team focuses on Custom Software Development and AI Agents.Read More
Clients
Gustavo Apiti Mores SuperArea.aiIndustries
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1011$1,000+10 - 49 employeesMarina del Rey, CADino Code LA is a custom software development firm. They are based in Marina del Rey, California and have a small team. Their services include Custom Software Development, Artificial Intelligence, Mobile App Development, UX/UI Design, and more.Read More
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1012$25,000+50 - 249 employeesSan Francisco, CASudolabs is an AI firm in Košice, Slovakia; San Francisco, California; San Francisco, California and West Hollywood, California. They offer Artificial Intelligence, AI Consulting, UX/UI Design, IT strategy consulting, and more and were founded in 2017.Read More
Clients
The Expert (https://www.theexpert.com/)Industries
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1013$100,000+250 - 999 employeesSan Jose, CASP Software (P) Limited, a software development firm, is headquartered in Hyderabad, India and San Jose, California. The team specializes in Custom Software Development and Artificial Intelligence.Read More
Industries
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1014$10,000+50 - 249 employeesWalnut Creek, CASoftware development company Creativa Studios is in Walnut Creek, California and San Salvador, El Salvador. They specialize in Custom Software Development, Web Development, Mobile App Development, Application Testing, and more and were founded in 2003.Read More
Clients
Mitratech Inc.Industries
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1015$5,000+2 - 9 employeesSan Jose, CAMunsonDesign, an app development firm, is headquartered in San Jose, California. Their services include Mobile App Development and Web Design.Read More
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1016$1,000+250 - 999 employeesWalnut Creek, CACGVAK Software & Exports Ltd is a custom software development firm in Coimbatore, India and Walnut Creek, California. Their services include Custom Software Development and Mobile App Development.Read More
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1017$1,000+10 - 49 employeesOakland, CAIn Mohali, India and Oakland, California, Futurista Soft Private Limited is a SEO services firm. They specialize in Search Engine Optimization and UX/UI Design.Read More
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1018$25,000+10 - 49 employeesNewport Beach, CARead More
Custom software development company Calder Solutions was launched in 2013. The small team offers Custom Software Development, Mobile App Development, UX/UI Design, IT strategy consulting, and more. The company is in Ada, Michigan and Newport Beach, California.
Clients
AmwayIndustries
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1019$10,000+10 - 49 employeesFremont, CAIn Fremont, California, Copper Ants is a small Mobile & App Marketing company. The team provides Mobile & App Marketing and Social Media Marketing.Read More
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1020Undisclosed10 - 49 employeesLos Angeles, CAIn Los Angeles, California, Buildify is a small branding company. Their services include Branding and Social Media Marketing.Read More
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