Top 100 Cross Platform App Developers in San Francisco
The Best of December 2025Looking for a top cross platform mobile app development company in San Francisco?
Cross-platform mobile applications have benefits that outweigh those of native applications if your users interact with your business on both Android and Apple products. Cross platform app development entails building a mobile app that’s compatible with multiple operating systems. Cross-platform, or hybrid apps, use a single codebase, which means you don’t need separate apps with separate technologies to appeal to customers using Android or iOS. Because of this single codebase, cross platform apps are less costly to create and maintain.
Most hybrid apps will use either Ionic or React as a development framework. React is a JavaScript framework that allow apps to support Android and iOS natively, while Ionic uses JavaScript, HTML5, CSS, and Sass for hybrid apps, desktop apps, and progressive web apps. Choosing an app developer with the right skillset to fit the technology framework your app needs is a good place to start when interviewing app development companies.
To assist you in your search for a partner, we’ve compiled this list of the top cross platform app developers in San Francisco. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best San Francisco Cross Platform Mobile App Development Companies
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1$25,000+50 - 249 employeesSan Francisco, CASynergy Labs is an app development company. The midsize Hollywood, Florida-based agency was launched in 2020. Their services include Mobile App Development, Custom Software Development, Artificial Intelligence, Generative AI, and more.Read More
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2$10,000+250 - 999 employeesSan Francisco, CAGeekyAnts is a Bengaluru, India-based custom software development firm. The midsize team provides Custom Software Development, Mobile App Development, Web Development, Artificial Intelligence, and more. The firm was launched in 2006.Read More
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Siveco Romania Olive Garden Darden KhataBookIndustries
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3$50,000+250 - 999 employeesSan Francisco, CAEmpat is an app development company established in 2013. They are in San Francisco, California; Kyiv, Ukraine; London, England and Miami, Florida and have a midsize team. Their services include Mobile App Development, Custom Software Development, and Web Development.Read More
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Obimy — A mobile app connecting loved ones across distances with over 10 million downloads on iOS and Android. Enables seamless communication and emotional connection. Mobile app development and social networking focus. Bigsister — Custom AI software designed for sales performance tracking and analysis, providing clean, accurate data to optimize sales teams and improve efficiency with advanced analytics. Trigga — A fintech project featuring payment systems and a comprehensive analytical database to support secure transactions and financial insights for smarter decision-making. DentalCare — Healthcare ecosystem with mobile app, web development, and CRM tools for managing patient records, tracking appointments, and sending automated reminders to improve patient care.Industries
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4$50,000+1,000 - 9,999 employeesSan Francisco, CARead More
BairesDev is a San Francisco, California-based software development company. The large team offers Custom Software Development, Web Development, Mobile App Development, Artificial Intelligence, and more. The company was founded in 2009.
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GoogleIndustries
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5$100,000+250 - 999 employeesSan Francisco, CARead More
Based in San Francisco, California; New York, New York; Florianópolis, Brazil and Austin, Texas, ArcTouch is a midsize IoT development company. Established in 2009, the team provides IoT development, UX/UI Design, Mobile App Development, Low/No Code Development, and more.
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6$25,000+1,000 - 9,999 employeesSan Francisco, CASimform is a cloud consulting & SI company. They are headquartered in Orlando, Florida; Los Angeles, California; Chicago, Illinois and San Francisco, California and have a large team that specializes in cloud consulting & SI, Custom Software Development, Mobile App Development, Artificial Intelligence, and more. The agency was established in 2010.Read More
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RedbullIndustries
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7$50,000+1,000 - 9,999 employeesSan Francisco, CARead More
Toptal is a private network of freelance technologists and designers. With more than 2000 freelance workers in its exclusive community, Toptal can be instrumental in finding the right freelance partner for development projects. The community includes developers for any platform, finance experts, and designers of both visual material and graphic interfaces. Because of its screening process, Toptal combines the reliability and expertise of an agency with the flexibility and affordability of freelance work.
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Toptal clients include J.P. MorganIndustries
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8$25,000+1,000 - 9,999 employeesLondon, EnglandSoftware development company Vention is headquartered in New York, New York; Marietta, Georgia; Woodbridge Township, New Jersey and London, England. The large team provides Custom Software Development, IT staff augmentation, Web Development, Mobile App Development, and more. The firm was established in 2002.Read More
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IBM PayPal pwc IC MarketsIndustries
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9$10,000+50 - 249 employeesNew York, NYIn New York, New York; Vancouver, Canada; Pyrmont, Australia and San Francisco, California, Roonyx is a midsize mobile app development firm. Launched in 2010, the team focuses on Mobile App Development, Web Development, AR/VR development, and Low/No Code Development.Read More
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10$25,000+250 - 999 employeesSan Francisco, CARobosoft Technologies Inc. Is a San Francisco, California-based app development company. They offer Mobile App Development, UX/UI Design, Web Development, Custom Software Development, and more and were launched in 1996.Read More
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Warner Bros. Discovery HSBC McDonalds Mercury FinanceIndustries
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11$50,000+10 - 49 employeesSan Francisco, CALaunched in 2015, Geekbears is a mobile application development firm. Their small team is located in San Francisco, California. Their team provides Mobile App Development and UX/UI Design.Read More
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SamsungIndustries
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12$10,000+50 - 249 employeesSan Francisco, CARead More
AirDev is a San Francisco based software development company. They were founded in 2015 and have a team of 11 employees who specialize in the custom software, web, mobile app development.
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HPIndustries
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13$10,000+50 - 249 employeesKyiv, UkraineHeadquartered in London, England; Kyiv, Ukraine; San Francisco, California and Toronto, Canada, OVERCODE is a web development company. The midsize team focuses on Web Development, Mobile App Development, Web Design, UX/UI Design, and more. The firm was founded in 2018.Read More
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SignifAI (New Relic)Industries
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14$25,000+1,000 - 9,999 employeesCorte Madera, CAEstablished in 2003, Svitla Systems is an IT managed services company. They are located in Corte Madera, California; Guadalajara, Mexico; Kraków, Poland and San Jose, Costa Rica and have a large team. Their services include IT managed services, Web Development, cloud consulting & SI, Artificial Intelligence, and more.Read More
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Logitech Helper Systems Wisetack Trauma BraceIndustries
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15$25,000+50 - 249 employeesSan Francisco, CARead More
Founded in 2009, MindK is a software development company that specializes in web, custom software, and mobile app development. Their team of 56 employees, based in San Francisco, partners with small business and midmarket clients in the financial services, advertising, and media industries.
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AdidasIndustries
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16$10,000+50 - 249 employeesSan Francisco, CADouble Coconut is a mobile application development firm. They are in San Francisco, California and Yerevan, Armenia and have a midsize team. Their services include Mobile App Development, Web Development, Blockchain, and Custom Software Development. The firm was founded in 2011.Read More
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EA Sports | Madden NFL Microsoft Casual Games Ellen Degeneres OTG GamesIndustries
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17$25,000+50 - 249 employeesWarszawa, PolandMobile app development firm Orangesoft is based in Warszawa, Poland; Sheridan, Wisconsin and San Francisco, California. The midsize company was established in 2011. Their team offers Mobile App Development, Custom Software Development, Web Development, and IoT development.Read More
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Hamleys Yukon Advanced Optics Worldwide CoachNow Liquid BarcodesIndustries
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18$1,000+1,000 - 9,999 employeesEdinburgh, ScotlandProbey Services is a web design company founded in 2016. The large team specializes in Web Design, Web Development, Mobile App Development, and Custom Software Development. The agency is based in London, England; New York, New York; Noida, India and Toronto, Canada.Read More
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19$10,000+50 - 249 employeesSan Francisco, CARead More
Founded in 2012, SF AppWorks is a digital agency that produces innovative technologies for mainly midmarket companies. Based in San Francisco, their team of 50+ specializes in web development, mobile app development, UX/UI design, and custom software development.
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West ElmIndustries
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20$10,000+50 - 249 employeesBerkeley, CARead More
Founded in 2016, Crowdbotics is a development company based in Berkeley, Calif. They work with businesses of all sizes in the business services, consumer products, and healthcare fields.
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StripeIndustries
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21$100,000+10 - 49 employeesSan Francisco, CARead More
WLCM App Studio is a software development firm launched in 2011. The small San Francisco, California-based team specializes in custom software development, mobile app development, ux/ui design, application testing, and more.
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22$10,000+50 - 249 employeesSan Francisco, CAAzumo, an artificial intelligence company, was established in 2016. Their midsize team is headquartered in San Francisco, California and Rosario, Argentina. The firm provides Artificial Intelligence, Custom Software Development, Mobile App Development, and BI & big data consulting & SI.Read More
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Twitter Facebook Omnicom Discovery ChannelIndustries
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23$25,000+10 - 49 employeesSan Francisco, CASavas Labs is a small web development company founded in 2013. Their services include Web Development, Web Design, UX/UI Design, Custom Software Development, and more. The agency is located in New York, New York; San Francisco, California; Boston, Massachusetts and Washington, District of Columbia.Read More
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Harvard University Environmental Defense Fund Adobe NPRIndustries
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24$1,000+10 - 49 employeesSan Mateo, CABinstellar Technologies Pvt. Ltd. Is a small mobile application development company. Established in 2021, the agency is based in Ahmedabad, India and San Mateo, California. Their services include Mobile App Development, UX/UI Design, E-Commerce Development, Branding, and more.Read More
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Test RoutesIndustries
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25$5,000+50 - 249 employeesSan Francisco, CAWeb design agency UPQODE was launched in 2015. They are based in Nashville, Tennessee; New York, New York; Tampa, Florida and Seattle, Washington and have a midsize team. UPQODE focuses on Web Design, Web Development, UX/UI Design, Custom Software Development, and more.Read More
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Gracenote - Entertainment ProvidersIndustries
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26$5,000+10 - 49 employeesSan Francisco, CARead More
Launched in 2020, Apex Lab is a software development company. Their small team is based in Tallinn, Estonia and San Francisco, California. Their team offers custom software development, mobile app development, web development, and enterprise app modernization.
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27$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
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The Expert (https://www.theexpert.com/)Industries
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28$10,000+50 - 249 employeesSan Francisco, CAScaleTech Solutions, a custom software development company, was launched in 2017. The agency focuses on Custom Software Development, IT managed services, Mobile App Development, E-Commerce Development, and more and has a midsize team. The agency is in San Francisco, California; Frankfurt am Main, Germany and Ahmedabad, India.Read More
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29$10,000+10 - 49 employeesSan Francisco, CAIT strategy consulting company Techlexity was founded in 2019. Located in L'viv, Ukraine and San Francisco, California, their small team provides IT strategy consulting, Custom Software Development, Web Development, Mobile App Development, and more.Read More
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30$10,000+10 - 49 employeesOakland, CARead More
Founded in 2021, Nimi Tech Limited is a small software development firm based in Oakland, California; Colombo, Sri Lanka and Chennai, India. Their services include custom software development, web development, mobile app development, IT staff augmentation, and more.
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