Top 100 Cross Platform App Developers in San Francisco
September 2023Looking 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+
- 1,000 - 9,999 employees
- San Francisco, CA
Headquartered in New York, Vention is a custom software development company with additional offices in Marietta, Ga. and Iselin, N.J. Since 2002, Vention has helped startups and fast-growing tech companies fill in their talent gap and create robust web and mobile solutions that users love. To date, Vention's talent pool includes 3500+ engineers with experience in all of the latest technologies.
Clients
- ClassPass
- ZEFR
- Gain Capital (forex.com)
- Merkle
Industries
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Vention provides staff augmentation services to a SaaS solutions provider. The scope includes software and feature development and maintenance across the product line.
"They are all developers capable of delivering their responsibilities."
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2
- $50,000+
- 1,000 - 9,999 employees
- San Francisco, CA
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.
Clients
- Toptal clients include J.P. Morgan
- Zendesk
- Artsy
- IDEO
Industries
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Toptal developed the app and branding of a sports betting aggregator and scoring engine. The project's main goal was achieving growth for the client company.
"They went above and beyond."
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3
- $25,000+
- 50 - 249 employees
- San Francisco, CA
Swenson He is a mobile app development company headquartered in Marina del Rey, CA. Founded by two MIT alumni, the team of now 20+ engineers specializes in mobile app development and UX/UI design for iOS, Android, and hybrid mobile platforms.
Clients
- simplehuman
- Stanford Medicine
- Power Music
- Breaker
Industries
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Swenson He provides web design and development services for an AI company. The team has designed and developed a web application and the client's company. Swenson He assists with UI/UX design and development.
"They're attentive and supportive of our team's ambitions."
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4
- $10,000+
- 50 - 249 employees
- San Francisco, CA
Roonyx is a web, mobile app, and AI development company founded in 2008 that caters their services to small business and midmarket clients. They have a team of nearly 30 employees who provide services from Moscow and Boston. They focus on the business services, automotive, and e-commerce industries.
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Roonyx developed Android and iOS applications for a game development company's end client. Roonyx designed the app's prototype and developed it using Flutter. The app helped couriers manage their routes.
"Everything was done well and, at times, even above our expectations."
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5
- $50,000+
- 250 - 999 employees
- San Francisco, CA
ArcTouch was founded in 2008 and has offices in San Francisco, Calif., New York, and Florianópolis, Brazil. They excel at app development, blockchain, and UX/UI design. They guide their enterprise clients through the app building process by defining a strategy for the best user experience, planning the visual design, developing and testing the prototype, and ensuring optimization and growth.
Industries
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ArcTouch has developed a mobile application for McCormick & Company. They created the app’s UI/UX design using Figma and Flinto. ArcTouch has also developed the app’s iOS and Android versions.
“ArcTouch’s UI/UX design is great, and they’ve developed a delightful app that users enjoy.”
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6
- $25,000+
- 10 - 49 employees
- San Francisco, CA
Zazz is a Seattle-based mobile app development company founded in 2011. They have an additional office in San Francisco. Their team of approximately 50 employees serves clients of all sizes and industries. In addition to app development, they also specialize in enterprise app modernization and UX/UI design.
Clients
- Inclose
- Ideal Smart
- Sparehandz
Industries
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Zazz developed a mobile app using React for a leadership consulting company. The platform was designed to deliver leadership development resources, communication tools, and performance tracking.
"We were absolutely delighted with the passion and hard work they demonstrated."
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7
- $50,000+
- 1,000 - 9,999 employees
- San Francisco, CA
Robosoft Technologies is a full-service digital experiences agency offering digital advisory, design strategy, UX/UI services, application development & maintenance and expertise in emerging technologies such as AR, VR, blockchain, chatbots and more. Established in 1996 and headquartered in San Francisco, the team of 500+ has offices in Mumbai, Udupi, Bengaluru, Chicago, and New York.
Clients
- Retail: Walmart
- Target
- JCPenney
- Victoria's Secret
Industries
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A tech company has hired Robosoft Technologies to perform manual and automation testing. The team is also tasked with executing regression and ensuring the sanity of the production environment.
"They did deliver their tasks on time and without any issues."
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8
- Undisclosed
- 1,000 - 9,999 employees
- San Francisco, CA
Kin + Carta is a tech-centered management consultancy based in Chicago. Founded in 1964, they also have offices in London, San Francisco, New York, and Singapore. Their team of approximately 3,000 focuses primarily on enterprise clients in the financial services and health care fields. Services include mobile app development, cloud consulting, and more.
Clients
- AstraZeneca
- Expedia
- Santander
- Barclays
Industries
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Kin + Carta (formerly Spire Digital) completely redesigned the website of a swimming organization. They restructured the UI/UX to make an attractive, user-friendly, and responsive site while integrating it into the existing CMS.
“They brought something new to the table that we hadn’t seen before.”
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9
- $100,000+
- 10 - 49 employees
- San Francisco, CA
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.
Industries
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WLCM App Studio is helping a corporate wellness company build their web app using Sketch, AWS, and various APIs as part of the technology. The project has included R&D, UI/UX design, and web development.
“WLCM’s communication and UI/UX design skills have been impressive.”
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10
- $50,000+
- 10 - 49 employees
- San Francisco, CA
Founded in 2015, Geekbears is a Web and Mobile Design & Development company based in California. They have served 200+ customers, and the list is growing. They worked with clients like Samsung, Harvard, and Indeed. From ideation to launching a digital product, Geekbears walk its clients through the entire process. Their main focus is to help businesses create stunning web and mobile applications to help make the world a more productive one.
Clients
- Samsung
- Harvard Medical School
- Indeed
- UC Berkeley
Industries
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Geekbears conducted an extensive discovery process and used Figma to develop a clickable prototype of a senior living platform's web app. The app is expected to improve end clients' search process.
"Their patience in explaining things to me and answering all of my questions helped me immensely."
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11
- $50,000+
- 50 - 249 employees
- San Mateo, CA
AGIMA is a mobile app development company. The midsize Istanbul, Turkey-based company was established in 2005. Their team focuses on mobile app development and web development.
Clients
- Mars
- Leroy Merlin
- Mercedes
- McDonald's
Industries
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IMAGA developed a system to track users' purchase path for a group travel company. They also recommended changes to the client's website.
"IMAGA has a highly flexible team that has adapted to our requirements and approach."
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12
- $50,000+
- 50 - 249 employees
- San Francisco, CA
Midsize website development company Cheetah Agency, is based in Dallas, Texas; Doylestown, Pennsylvania; Atlanta, Georgia and Austin, Texas. Established in 2006, the team specializes in web development, search engine optimization, marketing strategy, social media marketing, and more.
Industries
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Cheetah Agency has helped an organic bath and body products company craft their identity and online presence from scratch. Their work has included naming, branding, packaging design, and e-commerce development.
"The commitment to quality was palpable, not only in the final deliverables but also in the processes they followed."
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13
- $10,000+
- 10 - 49 employees
- San Francisco, CA
Techlexity is a small custom software development firm. Located in L'viv, Ukraine and Los Angeles, Glendale, California, the agency was founded in 2019. Their services include custom software development, web development, mobile app development, blockchain, and more.
Industries
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A software engineering company hired Techlexity to develop a mobile app. The team worked on making the app usable around the glove. They also worked on its backend architecture and provided supporting images.
"They have constantly proven their ability and produced top-notch work when they were committed to the job."
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14
- $10,000+
- 10 - 49 employees
- Berkeley, CA
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.
Clients
- Stripe
- Copper CRM
- Aura
- Airbus
Industries
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Crowdbotics has provided mobile app development and marketing services for a wedding planning agency. They have built features into the client's app and helped market it accordingly.
"They were knowledgeable and cared about my idea as much as I did."
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15
- $10,000+
- 50 - 249 employees
- San Francisco, CA
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.
Clients
- HP
- Lenovo
- CVS
- Chevron
Industries
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Airdev has built a customized platform for a digital creator marketplace. The team has worked on features such as account creation, product listing and selling, Stripe API integration, portals, and dashboards.
"I'm impressed with their helpful and communicative team and their direct approach to design."
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16
- $5,000+
- 50 - 249 employees
- San Francisco, CA
UPQODE is a website design and development agency based in Nashville, Tennessee. Founded in 2015, the team of 40+ specializes in web development, web design, and e-commerce development. They work with small businesses, focusing on information technology, e-commerce, and business services.
Clients
- Think Tank Team - Samsung Research America
- SAA - Spondylitis Association of America
- AmeriFreight Inc.
- DOXO Inc.
Industries
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A landscape management company absorbed another business and needed to redirect their website to the updated site. UPQODE redirected the website and provided web design updates to incorporate the new branch.
"It was a smooth experience, and we would definitely use them again."
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17
- $5,000+
- 10 - 49 employees
- San Francisco, CA
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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Recart developed a messaging bot that allowed e-commerce brands to convert customers to subscribers through email marketing. The team used React, Node.js, microservices, and Kubernetes to create the platform.
"Thanks to them, everyone was motivated and driven by the product’s success."
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18
- $10,000+
- 10 - 49 employees
- Oakland, CA
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.
Industries
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Nimi developed various features for a banking services provider's product. They worked directly with the product engineering and QA teams to support the platform and automate tests.
"Their leadership was so attentive; I felt like they were my partners."
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19
- $25,000+
- 50 - 249 employees
- San Francisco, CA
Founded in 2000, Blink UX has almost 20 years of experience in the IT sector. True to their name, Blink UX specializes in UX/UI design but also offers mobile and web development, research, strategy, and design services.
Clients
- Amazon
- NASA
- Apple
- Disney
Industries
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Blink UX designed an e-commerce website, condensing several branch URLs into one comprehensive site. They worked on UX, UI, content development, and stakeholder research before providing a spec to developers.
"They did really great, especially when things were outside of scope. The project got very complex."
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20
- $5,000+
- 10 - 49 employees
- San Francisco, CA
Siddhi Infosoft is a web and mobile app development company based in San Francisco, with a secondary location in Ahmedabad, India. Siddhi Infosoft was founded in 2011 and has 25 employees. Services offered by this company include mobile app development and web development for companing ranging from startups to Fortune 500 brands.
Clients
- DizzyDoctor
- GHN
- Sylky
Industries
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Siddhi Infosoft provides ongoing mobile app development for a health consulting services company. The team repaired the first version of the client's mobile app while working on the platform's second version.
"Siddhi Infosoft has been more than capable of handling this project and working together with us and our clients."
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21
- $50,000+
- 10 - 49 employees
- San Francisco, CA
Exygy is a digital strategy and development company founded in 2007. Located in San Francisco, CA, Exygy’s team of about 25 employees specialize in web design, web development, and mobile app development for Android, iOS, and hybrid platforms. Other services include UI/UX design, branding, software development, and IT consulting.
Clients
- Wikimedia
- Skoll foundation
- UNICEF
- Google org
Industries
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Exygy provided web development services for a video-centric web portal. The ongoing partnership included front-end development, mobile optimization, and information architecture.
“They’re always very responsive. I really enjoyed working with them."
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22
- $5,000+
- 50 - 249 employees
- San Francisco, CA
VinnCorp is an application development firm based in Elk Grove, California; Hayward, California and San Francisco, California. Founded in 2019, the small team specializes in mobile app development, custom software development, branding, IT staff augmentation, and more.
Industries
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VinnCorp (formerly Scrumteams) has provided staff augmentation services for a digital advertising and media company. They've developed profile reviews, interviews, and screenings and assisted with implementing the designs.
"The team's growth-driven design approach is a remarkable feature in the workflow."
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23
- $25,000+
- 10 - 49 employees
- San Francisco, CA
Yeti LLC is a software development and design company founded in 2010. They have 20 employees, all of whom work out of an office in San Francisco. Yeti's practice is extensive for a firm of its size; they offer custom software development, UI/UX design, mobile apps, and IoT development.
Clients
- Westfield Corporation
- Sony
- Alcatel-Lucent
Industries
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Yeti redesigned a legal firm's website to be more responsive and dynamic. The project involved development for web and mobile, design, content creation, and ongoing support.
"They did a lot of 'above and beyond' things."
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24
- $25,000+
- 50 - 249 employees
- San Francisco, CA
Grio is a software consulting firm based in San Francisco, Calif, that was established in 2008. Their team of 50 employees offers web development, mobile app development, and UX/UI design services.
Clients
- Rivals.com
- Fitbit
- Texture
- Neustar
Industries
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Grio developed a website for a lighting design and manufacturing firm to showcase their products. They linked the site to a Shopify store. The team continues to provide web support and consulting services.
“Grio has provided a great support system.”
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25
- $25,000+
- 50 - 249 employees
- Orinda, CA
Based out of Orinda, CA with satellite offices in India and Croatia, Daxima is a software development company. The team of more than 50 employees has been in business since 2003. They provide web, software, and mobile app development for clients around the world.
Clients
- T-Mobile US
- Cisco Systems
- Savi Technology
- Berry Appleman & Leiden
Industries
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Daxima helped develop and implement a more robust client management system, capable of data aggregation, external program integrations, widespread use, and business growth.
"If the team didn’t have an answer, they’d get back to us, and do it quickly. We were never left hanging."
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26
- $5,000+
- 10 - 49 employees
- San Mateo, CA
Located in San Mateo, California and Beograd, Serbia, Action Engine is a software development firm. They offer custom software development, web development, ux/ui design, mobile app development, and more and were launched in 2017.
Clients
- ESRI
- Foursquare
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Action Engine has worked on the development of a cloud-based app for an automated retail company. The team has created screens for the app and has moved on to developing the product using the Heroku platform.
“I’m extremely pleased with my experience working with them — it’s been a pleasure.”
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27
- Undisclosed
- 10 - 49 employees
- San Francisco, CA
Extractable is a San Francisco based boutique digital strategy and experience design firm. Founded in 1999, the company employs a team of 24. Extractable offers UX/UI design, digital strategy, web design, web development, content marketing, and mobile app development. Their client base primarily includes large enterprise and mid-size companies.
Clients
- Extractable's client base spans the financial services
- healthcare
- and B2B technology industries. Key client relationships include: Patelco
- Micron
Industries
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Extractable applies digital marketing skills in supporting multiple business units, conducting regular analyses of core website traffic, and presenting clean, tracked data to identify growth opportunities.
"More than any other vendor, Extractable is like my own team."
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28
- $5,000+
- 1,000 - 9,999 employees
- San Francisco, CA
Established in 2011, AppTecHub is a large mobile application development company. Their team offers mobile app development, web development, and custom software development. The agency is located in San Francisco, California.
Industries
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AppTecHub is the client's development partner. They've built a mobile app from scratch alongside the internal development team. They've also designed a website to help the client advertise their services.
"I'm very happy with our partnership with AppTecHub."
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29
- $50,000+
- 10 - 49 employees
- San Francisco, CA
Blackstone Studio is a custom software development firm. Their small team is located in San Francisco, California and Guadalajara, Mexico and focuses on custom software development. The firm was launched in 2019.
Clients
- Ferrari
- Indivio
- Occam Technologies
- Caliente
Industries
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Blackstone Studio developed an MVP that could speed up an ad company's billing and invoicing processes in an AWS-based environment. The key deliverables included a codebase, diagrams, and project documentation.
"Their work quality was excellent; it exceeded our expectations."
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30
- Undisclosed
- 50 - 249 employees
- San Francisco, CA
Scalio is a global digital product agency based in San Francisco, with offices in Atlanta and in Orange, Calif. The agency, founded in 2011, has more than 40 employees and provides, among others, web design, UX/UI design, and web development services to midmarket and other companies in various industries.
Clients
- Viacom
- Shell
- Uber
Industries
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Scalio reached out to a mobile solutions provider to offer iOS and Android solutions. The team was in charge of overhauling the company's existing platform into one that's more scalable.
"From beginning to end project management is fast and transparent."
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