20 Top Mobile App Development Companies in San Francisco (2025)

An average user has more than 80 apps on their smartphones. Once you develop the right product or services, founders often shift their focus to increase their reachability for a wider audience. To scale their business sales and target global markets – investing in mobile app development would be the finest decision!

Businesses in San Francisco spend heavily on collaborating with professionals, including programmers, CIOs, app developers, engineers, and UI/UX designers, to develop full-customizable apps. San Francisco is an innovator hub, ranking top in attracting tech giants like Apple, Zynga, Airtable, Pinterest, Twitter, Uber, Yelp, and others.

So, whether you are looking for native, hybrid, or AI-based app development, this city has everything to offer. Finding the best mobile app development company in San Francisco to deliver core services for custom mobile app development, UI/UX design, VR and AR apps, Cross-Platform (Hybrid), cloud apps, and QA & testing.

In the blog ahead, let’s take a closer look at the top mobile app development companies in San Francisco.

The NineHertz

4.9 (118 Reviews) Verified

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• $25 - $49/hr
• 2008
• USA
• 150+

Service Focused

Mobile App Development

Jafton

3.9 (101 Reviews) Verified

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• $50 - $99 / hr
• 2013
• USA
• 49+

Service Focused

Mobile App Development

Lickability

4.1 (20 Reviews) Verified

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• $150 – $199
• 2009
• USA
• 90+

Service Focused

Mobile App Development

10 Best App Developers in San Francisco

There is a shapeless demand for app development services, starting from business, lifestyle, entertainment, gaming and cab booking apps. Considering the infinite opportunity in the market, here we are enlisting top app developers and their highlighted services with an informative table:

20 Top Mobile App Development Companies in San Francisco

With rising tech innovation and development, businesses are aiming to improve user experiences with emerging trends of progressive web app development, AI integration, no-code or low-code development, and data security. So, trust the right mobile app development company in San Francisco to shape your planning, UI/UX design, deployment, and maintenance support.

1. The NineHertz

It is one of the software development companies in San Francisco that offers comprehensive services for custom app development for iOS, Android, Cross-platform, React Native, and Flutter. More than 150 developers and experts are ready to help businesses with app design, development, deployment, QA, and testing.

• Number of Employees: 50-249
• Founding Year: 2008
• Locations: San Francisco, USA, Dubai, UAE
• Website: www.theninehertz.com

2. HyperLink Infosystem

As the leading mobile app development company in California and San Francisco, you will have a skilled team of expert developers who can deliver scalable services that fit your time and budget. Using the latest tools of Android SDK, Swift, and Cocoa to deliver smart features, expert UI/UX design, and industry-specific solutions.

• Number of Employees: 500+
• Founding Year: 2011
• Locations: USA, UK, Canada, France, UAE and Australia
• Website: https://www.hyperlinkinfosystem.com/

3. Citrus Bits

Citrus Bits is an award-winning company providing the best mobile app development in San Francisco. Here, the expert app designers, developers, and digital strategists worked with top clients like Burger King, Mercedes-Benz, and Johnson & Johnson. Citrus Bits providing core services for app development for iOS, React Native, Android, Flutter, and AI integration.

• Number of Employees: 50- 249
• Founding Year: 2005
• Locations: Los Angeles, USA; San Francisco, USA
• Website: https://citrusbits.com/

4. Dev Technosys

It is a premier mobile app development company that aims to deliver pioneer solutions for over 15+ years. Served across 70+ countries and dedicated to 150+ San Francisco app developers, it focuses on design and innovation for Android, iOS, Cross-platform, custom web, IoT app development, and maintenance. Using high-tech AI, GenAI, Machine Learning, Predictive Analytics, and Deep Learning, you will get fully customized apps.

• Number of Employees: 50-249
• Founding Year: 2010
• Locations: San Francisco, USA and India
• Website: https://devtechnosys.com/

5. Infinum

With over 1000+ successful projects launched, Infinum has followed an agile methodology to develop apps using Android, iOS, Cross-platform, mobile app optimization, code refactoring, and app maintenance and support. Partnering with Infinum, you will get a comprehensive solution for frontend, backend, and full-stack app development.

• Number of Employees: 50-249
• Founding Year: 2005
• Locations: New York, USA, Croatia, London and UK
• Website: https://infinum.com/

6. Vinsol

Looking for a young team of expert developers? Vinsol has having best experts and global team support with best-in-class training for app development. It was started as a visionary app development company in San Francisco focused on innovative development with new trends developing the best-in-industry applications. Turn your simple idea into the best app development with the process followed ideation, design, development, and deployment.

• Number of Employees: 50-249
• Founding Year: 2000
• Locations: San Francisco, USA, Boston
• Website: https://vinsol.com/

7. Naked Development

With a record of more than 3.7 million downloads, it is one of the top mobile app development agencies that leads the business for app development and deployment. The Best San Francisco app developers perform deep research and plan with brand strategy, design products for UI/UX, and multi-code development with guidance on branding and marketing ideas.

• Number of Employees: 10-49
• Founding Year: 2015
• Locations: USA (California)
• Website: https://nakeddev.com/

8. eTeam

ETeam has completed over 15 years of experience in decoding your business’s complex ideas and developing feature-driven apps. It can manage all core services, from simple websites to complex native or hybrid apps. Acing development with tech stack of React, Node, TypeScript, Ruby, Kotlin, Swift, and MongoDB. Collaboration with AWS, Azure, Jenkins, Cloudflare, SonarQube, Docker, Kubernetes, and OpenVPN for a faster and productive development cycle.

• Number of Employees: 10-49
• Founding Year: 2010
• Locations: San Francisco, USA
• Website: https://www.eteam.io/

9. IntellectSoft

One of the top innovators as an app development company in San Francisco, Intellectsoft is a trusted name for developing, testing, updating, and scaling to deliver digital products. Serving industries of Fintech, Healthcare, Construction, travel, and hospitality for 17+ years to deliver excellence with more than 600+ custom mobile app solutions. It provides native and cross-platform development with a team of 250+ experts deploying apps compatible with iOS and Android.

• Number of Employees: 250-900
• Founding Year: 2007
• Locations: USA, UK, UAE, and Norway
• Website: https://www.intellectsoft.net/

10. Iotasol

Transform your business with the best web development services, offering strategic web presence through the best app development in San Francisco. It delivers robust security, is budget-centric, has APIs, and has regulatory compliance to stand out in a competitive market. Iotasol specialise for front-end, back-end, progressive web apps, and eCommerce development.

• Number of Employees: 50-249
• Founding Year: 2010
• Locations: USA
• Website: https://iotasol.com/

11. Mercury Development

Recognized as a Top Android app development company in 2019, Mercury Development has specialized in app development since 1999. It has launched over 1500 iOS and Android mobile apps, covering almost 40,000,000 users. The dedicated team works on optimizing code and design for native or hybrid apps to deliver excellent performance. It has served the industry for more than 25 years and has 40 million active users deploying over 1500+ apps.

• Number of Employees: 250-900
• Founding Year: 1999
• Locations: USA and Europe
• Website: https://www.mercurydevelopment.com/

12. Cheesecake Labs

Specialising in mobile app development in San Francisco, Cheesecake Labs focuses on developing scalable apps for iOS and Android. It uses the best tech frameworks, such as frontend development with React Native, Flutter, or iOS, Backend with Python, NodeJS, or Golang, and Architecture and DevOps with GoogleCloud, AWS, or Azure. Following this development process, it delivers the best mobile app development services in San Francisco.

• Number of Employees: 100-249
• Founding Year: 2013
• Locations: San Francisco (USA)
• Website: https://cheesecakelabs.com/

13. Startup House

For app development, Startup House uses trending technologies, such as developing cross-platform mobile apps with React Native, compatible with iOS and Android. Trusted by top brands such as Metaverse, Omnipack, Siemens, Rainbow, Graspify, and Qnappen. Start House can help with One codebase for both platforms, native performance, cost-effective developing cycles, fixes bugs, complex functionality, and flexible development.

• Number of Employees: 50-249
• Founding Year: 2010
• Locations: San Francisco (USA)
• Website: https://startuphouse.co/

14. Koderspedia

Top mobile app development company in USA to shape your journey for digital success with services of iOS, Android, Cross-platform, progressive web app, native app, AR/VR app, game, and wearable app development. Completing over 2000 projects in 11 years, Koderpedia uses specialized tech in JavaScript, C++, Kotlin, Flutter, Swift, React Native, and Python.

• Number of Employees: 11-50
• Founding Year: 2019
• Locations: San Francisco (USA)
• Website: https://koderspedia.com/

15. Bitwits

Combining digital expertise with visionary thinking, Bitwits is a trusted and reputed brand for mobile app development services in San Francisco, specializing in mobile app development, Android apps, iOS apps, Cross-platform apps, and Mobile gaming apps. From MVPs to industry-specific apps. Some highlighted projects are SoulScribe, Vifty, and others. It operates on thriving technologies of AI, GenAI, IoT, Blockchain and AR/VR for seamless integration.

• Number of Employees: 50-100
• Founding Year: 2015
• Locations: San Francisco
• Website: https://www.bitswits.co/

16. BlueLabel

Achieving the technical expertise of over 13 years of experience and trusted by Google, Chegg, Consumer Reports, Brinks, Microsoft, and Time. With a global expert team of 75+, it delivers world-class designers, developers and strategists to develop iOS and Android apps. It follows an effective process of solving a problem with the app, building a prototype, adding functionalities, and testing the ideas with real customers.

• Number of Employees: 100+
• Founding Year: 2009
• Locations: USA (New York City, Seattle, San Francisco)
• Website: https://www.bluelabellabs.com/

17. Clay

It is a popular global UX design agency that helps the world’s leading brands with AI, design, and technology. Adding top clients like Toyota, Amazon, CISCO, VMware, Coca-Cola, Samsung, Sony, and Google to the portfolio. It focuses on app development by visualizing brand strategy, architecture, visual identity, brand guidelines, and experiences. Using artistic representation with iconography, animation, 3D photos, and videos,

• Number of Employees: 10-50
• Founding Year: 2013
• Locations: USA (Fresno, San Francisco)
• Website: https://clay.global/

18. GeekyAnts

Developing smart apps using the core tech framework of React Native and Flutter, which provides personalisation and convenient user experiences. Starting from ideation, wireframes, code analyzers, automated testing, deployment, and security maintenance, it provides core expertise for cross-platform mobile app design, app maintenance, app optimization, and QA.

• Number of Employees: 200-500
• Founding Year: 2006
• Locations: UK, London, USA, California
• Website: https://geekyants.com/

19. Prismetric

Prismetric helps businesses scale with AI-powered digital transformation, delivering on-time delivery and customized solutions. It provides mobile app consultancies, custom app development, MVP development, mobile app design, integration, testing, and QA. Whether you are looking for app modernization or full-stack on-demand app development, it optimizes for excellence.

• Number of Employees: 50-240
• Founding Year: 2008
• Locations: USA
• Website: https://www.prismetric.com/

20. SolveIt

It helps startups and SMEs deliver business-oriented results. A custom mobile app development company in San Francisco has recorded a 100% client satisfaction rate with excellence for 8 years. Here, you will get experts for delivering top-quality iOS, Android, and Cross-platform app development. From MVP development to web development, SolveIt can capture the right solution for single-page applications and progressive web apps.

• Number of Employees: 50-249
• Founding Year: 2016
• Locations: San Francisco, CA
• Website: https://solveit.dev/

Benefits of Hiring Mobile App Development Companies in San Francisco

Nowadays, app developing tools like Android Studio, React Native, Xamarin, Xcode, Flutter, and Buildfire make it easier to deploy app development. On the one hand, a no-code solution builds a great app, but advanced featured apps require hiring the best mobile app development company in San Francisco. Here are the enlisted benefits of hiring developers:

1. Experience and Expertise

Mobile app development companies in San Francisco deemed to have a rich experience with a team of developers, designers, and project managers across multiple sectors and industries of eCommerce, Edtech, Fintech, or Healthcare. It offers expertise and helps in building the right framework and technology stack to stay ahead of industry insights.

2. Cost Effectiveness

Adopting flexible options like hiring on an hourly basis or freelancers will be a cheaper alternative; however, hiring a mobile app development company in San Francisco will deliver better ROI in terms of overhead cost, resources, and technology solutions. So, this way, you can allocate a specific budget only to avail yourself of the best feature-driven app.

3. Quality Assurance

The app development process can never be complete without manual and functional testing. So, hiring a mobile app development company will allow the QA and testing team to fix any glitches and bugs and improve capabilities. This helps to receive the best final product free from any faults.

4. Scalability

Working with a professional app development company provides access to diverse talent that can scale your business on major levels. Whether you aim to increase speed and navigation or add more features after the launch, it allows you to build and market your app in the right market.

5. On-time Delivery

Most companies aim to shorten the timeline for their app development projects to deliver faster and quality products. With a team of experts, it can manage efficient workflows to reduce the development cycle and time needed to launch your app. Whether you want to optimize for the Google Play Store or App Store, it will deliver smoother deployments.

6. Security and Post-Launch Support

App development companies in San Francisco have skilled and expert developers who focus on data security and integrity for app development while sharing licensed and certified services. It helps to safeguard your app’s design, code, and other valuable assets to develop a fully functional app. Additionally, it will provide maintenance and support services.

How to Choose a Mobile App Development Company in San Francisco?

As the market is filled with options and experts, it will be difficult to select the right mobile app development company in San Francisco. Without research and planning, you might lose the opportunity, delay deliveries, or abandon the project in a middle way. Before making a contract, you have to look at different factors to choose the best app developers in San Francisco. Here are suggestive roadmaps to select the right mobile app developers in San Francisco:

Research About Company: Take adequate time to research app development companies, their services, expertise, and industry experience.

Examine for Technical Expertise: Using the right technology stack will help develop the app without any risks and defaults, so check if the team has specialists, what their development approach is, and whether they are proficient in the latest technology trends.

Review their Existing Projects: You can examine app design references and portfolios and verify if they match your aesthetic preferences. Exploring existing project experience would help, especially if you are looking for an industry-specific solution based on user demographics.

• Client Testimonials: You can check about the company with online reviews and social media to draw the right feedback. It helps to check the company’s experience in outsourcing, team communication, collaboration, and managing challenges.
• Estimate Budget: Prior discussion of the project budget based on customised requirements and project scope will help manage cost. You can explore multiple cost models for fixed pricing, hourly rates, and time and material costs.
• Team Location: It is a crucial factor in deciding on the choice of the onshore and offshore team that decides on implications for project dynamics. The offshore team can bring you a cost advantage, while the onshore team will provide the advantage of real-time collaboration.

Mobile App Development Roadmap – 5 Simple Steps

Every company or startup has different expectations for app development, whether it is web apps, hybrid apps, native apps, progressive web apps, or cross-platform. The mobile app development process will vary based on feature customization and platform integrity; however, the basic steps will remain the same.

Let’s have a look at a strategic mobile app development roadmap that helps businesses to get delivered on time and with the right expertise:

Step 1: Planning and Strategy

Here, the developer team will assess project requirements and tech scope to achieve the right goal and target audience. It outlines deadlines, milestones, budget, risk, design, and tech requirements.

Step 2: UI/UX Design

Post-research, the developing team will begin with the design phase and study the market and competitors to understand user flow. It helps create the best prototype or wireframe with guidance for the user’s journey throughout the application.

Step 3: App Development

Once you are ready with the blueprint, it’s time to move on to development based on your preferred platform, such as iOS and Android. The blueprint also identifies which features to integrate, such as APIs, payment gateways, and security protocols.

Step 4: Testing

The app development process risks bugs and technical faults that might inconvenience users. So, mobile app developers in San Francisco can fix the issues with performance, security, and usability testing and develop the final app ready for easy deployment.

Step 5: Maintenance and Support

Post-launch, the business continues tracking app performance and download rates to detect problematic points and integrate features for the audience. The developing team monitors each stage using tools and software to upgrade functionalities.

Cost to Hire Mobile App Developers from San Francisco

Deciding on hiring mobile app developers in San Francisco will depend on factors like project size, expertise and feature integrations. Also, the competition rate in San Francisco is high, every developer will quote differently based on industry standards and contractual terms.

Here’s a table summarizing the average cost to hire mobile app developers in San Francisco:

Based on Project Requirements

Based on Types of Apps:

Based on Target Industry:

Based on the Development Platform:

Why Choose NineHertz Among Other Mobile App Development Companies in San Francisco?

NineHertz is one of the leading custom mobile app development companies in USA working on a dynamic approach for building native, hybrid, and cross-platform apps. Get a free estimate for the project, on-time delivery, budget-specific apps, personalized approach, and agile development. NineHertz has exclusive expertise in tech innovation to build from scratch and deploy frontend, backend, database, frameworks, Cloud, DevOps, CMS, platform, and security testing. With delivering more than 1300+ projects and serving 100+ industries, it delivers a higher commitment to innovations and business expertise.

Delivering to versatile demand for app development, you can avail of on-demand apps, appointment booking apps, eCommerce apps, and travel and booking apps. Delivering excellent service quality and flexible models based on the timeline, nature and client requirements to deliver full stack and custom apps.

Conclusion

Any business not investing in mobile app development is missing out on wider reach, engagement, customer loyalty programs, increased sales improvement, brand awareness, and competitive advantage. Whether it’s an on-demand app or a web app, these are digital extensions of activities, so it is no longer a trend. Businesses, startups, and enterprises are on the hunt for custom mobile app development companies that can deliver excellent features and increase sales and user experience. From budget-specific to the right technology integration, hiring the best San Francisco developers will ease the development journey. Business owners can even generate revenue through monetization, collaboration, and eCommerce optimization.

So, you should first set project goals and requirements and hire a mobile app development company in San Francisco to turn a visionary idea into a functional application!

FAQ’s

What is the core expertise of San Francisco app developers for technology?

They should have expertise in native and cross-platform development, frontend and backend development, cloud solutions, AI-based app development, DevOps, and CI/CD deployment.

Which are the top components for mobile app UI design?

It comprises navigation bars, a side menu, tabs, buttons, text fields, checkboxes, a dropdown menu, progress indicators, and images and icons.

What is the average cost to hire a mobile app development company in San Francisco?

The average cost estimation can range between $30,000 to $1,50,000 for developing basic to complex feature apps.

What are the core services mobile app development companies offer?

Some services involve app consulting, UI/UX design, frontend and backend development, deployment, analytics, feature integration, and after-launch support.

Can you name some tools and software that are frequently used for mobile app development in San Francisco?

These tools are Flutter, React Native, Swift, for development, Figma, Sketch, or AdobeXD for app design, Node.js or Express.js for the backend, Browserstack or Appium for testing, and Google Analytics or AppDynamics for analytics.