Our expert analysts identified the leading mobile app developers in California that create high-performance apps that engage and retain their user base. Filter listings by city, team size, cost of services and reviews to personalize your search. Choose the best partner for your brand and take advantage of these agencies' expertise and experience.
We solve 99% of digital business problems.
Hey! This is Startup House we specialize in developing innovations from ideation to full-scale applications, offering services that cover every aspect of the product development cycle. [... see all Startup House reviews ]- Location
- San Francisco, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 12 Projects Listed
We serve good projects and provide guaranteed quality and customer care
At our company, we believe in being flexible and adaptable to our clients needs. We understand that every business is unique, and we work closely with our clients to deliver tailored solutions that meet their specific requirements. Our team is available 24 hours a day, seven days a week, to ensure that our [... see all Tessafold reviews ]- Location
- Santa Clara, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 1 Project Listed
Best Software Outsourcing Agency
ZAAG SYSTEMS delivers scalable web, mobile & AI solutions with sleek design, driving business growth for US startups. [... see all ZAAG SYSTEMS reviews ]- Location
- Santa Clara, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $20/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 17 Projects Listed
Your Trusted Mobile and eCommerce Partner
We provide a full range of services as a full-service mobile app development company, including mobile strategy, design, integration, migration, and upgrade, as well as 24 hour support and maintenance. [... see all EbizON Digital reviews ]- Location
- Altadena, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $49/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 7 Projects Listed
We Build AI Systems You Own
Spiral Scout builds AI agent systems and production workflow automation for companies that need more than a proof-of-concept. 120+ engineers, 16 years of production engineering, certified Temporal Solution Provider, and creators of Wippy.ai. 612+ projects shipped. [... see all Spiral Scout reviews ]- Location
- San Francisco, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $75/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 30 Projects Listed
Digital and Physical Product Innovation
Delve is a physical and digital product innovation firm. [... see all DELVE reviews ]- Location
- San Francisco, California
- Number of Employees
- 100 - 249
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 6 Projects Listed
Software & Mobile Application Development Company.
Rushkar Technology Pvt. Ltd. is a premier software development company based in India, renowned for its commitment to delivering high-quality, timely, and cost-effective offshore software and mobile application solutions. At Rushkar, we prioritize long-term relationships and client satisfaction, ensuring that [... see all Rushkar Technology Pvt. Ltd. reviews ]- Location
- Anaheim, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $12/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 2 Projects Listed
Transforming Enterprises with AI Applications
ThirdEye Data Transforms Enterprises with Data & AI Solutions & Services. ThirdEye Data leverages Artificial Intelligence & Data technologies to build AI applications for enterprises worldwide. [... see all ThirdEye Data reviews ]- Location
- San Jose, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $55/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 23 Projects Listed
Your Solid UX/UI Design Partner for Data-Intensive SAAS Platforms
We are about helping DataTech and FinTech businesses and startups level up their Product Design and driving Revenue Growth through our highly skilled UX/UI design team. [... view LeverageUX Design House profile ]- Location
- Santa Rosa, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $75/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 45 Projects Listed
Driven by Innovation
The best eCommerce development company empowering you with the tools you need to conquer your industry. [... see all Folio3 reviews ]- Location
- Pleasanton, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 11 Projects Listed
Let Us Solve Your Outsourcing Software Needs
Solvd, Inc. is a renowned outsourcing solutions and engineering company specializing in Mobile, Web, and Quality Assurance solutions. With a global presence and a team of over 230 professionals, we serve VC-backed startups, tech companies, and enterprises across various industries. Our flexible approach [... see all Solvd reviews ]- Location
- Roseville, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 4 Projects Listed
Enterprise Grade App & Web Development Services
At RichestSoft, we don't just build apps; we create seamless digital experiences that automate businesses. As a leading Mobile App and Web Development Company, we partner with visionary companies to bring their ideas to life, blending their vision with our cutting-edge technical expertise to spark future [... see all RichestSoft reviews ]- Location
- San Jose, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $20/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 9 Projects Listed
Mobile App & Ecommerce Development for Startups
Frenchy Digital is a minority-owned startup in Los Angeles that specializes in Mobile App and Web Development. Before our company was founded in 2019, our developers, designers, and project managers have delivered hundreds of web and mobile applications for satisfied clients from entrepreneurs and startups to [... see all Frenchy Digital reviews ]- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 4 Projects Listed
Invested in Your Success
Tepia is a software company founded in 2012 with over 30 years of experience in web and mobile app development. We are a passionate and agile team of developers, designers, and strategists who are consistently pushing the boundaries of technology. [... see all Tepia reviews ]- Location
- Costa Mesa, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 2 Projects Listed
Research, Design and Build
Lollypop Design is a global UX UI and Interactive Design Company on a mission to empower and touch a billion lives across the world through world-class digital experiences. [... view Lollypop Design Studio profile ]- Location
- San Jose, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 55 Projects Listed
Leading Web and Mobile App Development Company in India, USA, & AUS
Techcronus Business Solutions is a global provider of enterprise business solutions and modern-day technology services. [... see all Techcronus Business Solutions Pvt. Ltd. reviews ]- Location
- Los Angeles, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Portfolios Count
- 14 Projects Listed
A San Diego-Based SEO Agency
The Saba SEO professionals will handle all the intricate SEO techniques to ensure your website thrives. As a search engine marketing agency, we focus on creating effective campaigns within your budget, while staying up-to-date with the latest trends in the field. Trust in our team of top talent to help you [... see all Saba SEO reviews ]- Location
- San Diego, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 5 Projects Listed
AI & Blockchain Built for Scale
Dubai-headquartered technology company specialising in AI, Blockchain, Web & Mobile, and DevOps solutions. 14+ years delivering enterprise-grade digital products for clients across the US, UAE, and UK. [... see all Candour Technolabs reviews ]- Location
- Santa Monica, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Portfolios Count
- 18 Projects Listed
A Top-Class Google App Engine Development Company!
Etelligens is an industry-leading custom software and Google app engine development company known for its reliable mobile and web development that delivers innovative solutions. [... see all Etelligens Technologies reviews ]- Location
- Torrance, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 7 Projects Listed
A highly recommended mobile app development company
Blue Label Labs is a premier digital product agency, providing a comprehensive array of services to transform businesses in the digital realm. With a strong global presence, we specialize in mobile app development, especially iPhone app development, publishing app development, web design, and product [... view BlueLabel profile ]- Location
- San Francisco, California
- Number of Employees
- 100 - 249
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 22 Projects Listed
Come chase the exceptional.
We're DPDK, brand innovation agency for the bold. We craft brand systems that connect purpose to performance. Come chase the exceptional. [... view DPDK profile ]- Location
- San Francisco, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $150/hr
- Portfolios Count
- 41 Projects Listed
Innovation Amplified: Offshore Software Solutions Redefined.
Mangosoft is a top offshore software agency, offering web, mobile app, and enterprise development services. With a strong track record and a global presence, we have successfully delivered 250+ projects across 30+ countries. Our tailored teams of niche experts ensure optimal results, while our transparent [... see all Mangosoft reviews ]- Location
- Santa Monica, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 18 Projects Listed
Crafting Technology, Connecting Innovations
Qulix Systems, an international software testing and development company, boasts a strong presence across the US, UK, Belarus, and Estonia. Specializing in custom software solutions, mobile application development, software quality assurance, integration, and UX/UI design, we focus on sectors like banking [... view Qulix Systems profile ]- Location
- Marina del Rey, California
- Number of Employees
- 500 - 999
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 5 Projects Listed
Purpose-Driven, People-Centric Software Development Designed to Wow.
Software, IT, and HR Tech solutions for all of your needs. Vincit is an award-winning development and design company. We build tailor-made, results-driven e-commerce platforms, foodtech solutions, mobile apps, web services, and embedded systems. We excel in composable software, and coupling backend [... see all Vincit reviews ]- Location
- Orange County, California
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $180/hr
- Minimal Budget
- $50,000 & Up
Certified E-Commerce Development Company
Certified E-Commerce Development Company [... see all Dinarys reviews ]- Location
- San Francisco, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 16 Projects Listed
IT Solutions for Promising Businesses
We are a full-cycle IT development company that designs and creates perfect solutions based in the US with HQ in Walnut, California. Our experience in diverse marketplaces allows us to offer high-level service to our clients with a clear understanding of their need for flexibility, speed, and agility. [... see all Ptolemay reviews ]- Location
- Walnut, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 4 Projects Listed
Start something awesome together
We are a global technology consultancy that prioritizes effective results and client success. [... see all Zen8labs reviews ]- Location
- California City, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 3 Projects Listed
Web Design + Digital Marketing Agency | 20+ Years Experience
Top Notch Dezigns® is a full-service web design and digital marketing agency that specializes in custom websites tailored to meet diverse business requirements. With a focus on boosting brands, increasing conversions, and generating leads. [... see all Top Notch Dezigns® reviews ]- Location
- Los Angeles, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $150/hr
- Portfolios Count
- 12 Projects Listed
Design and developing digital experiences that move people
Use All Five is a dynamic digital agency that specializes in crafting extraordinary experiences that will captivate and move your audiences. [... see all Use All Five reviews ]- Location
- Los Angeles, California
- Number of Employees
- Under 49
Scalable Intelligence
ScalaCode helps ISVs and enterprises build AI-powered products with vetted remote developers from India. From LLM apps and MLOps to full-stack delivery, our PODs ship fast, securely, and cost-effectively for US/EU time zonesunder strict NDAs and SLA-driven execution. [... see all ScalaCode Global Pvt. Ltd. reviews ]- Location
- San Jose, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $15/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 2 Projects Listed
Don't just grow, soar.
Americaneagle.com is essentially a one-stop shop offering a comprehensive range of options for anyone wishing to thrive in their online pursuits. A family-owned, privately held business with a proven track record of success and reliability is Americaneagle.com. [... see all Americaneagle reviews ]- Location
- Los Angeles, California
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $175/hr
AI & Software Development Company
Scalable AI, MLOps & Software Development for Visionary Projects. At Intuz, we engineer intelligent, scalable, and future-ready systems. We thrive on complexity, and if your project pushes boundaries, we are the team to make it happen. [... see all Intuz reviews ]- Location
- San Francisco, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 8 Projects Listed
Mobile and Web Apps for Startups and Businesses
We've built products for Fintech, Law, Healthcare, Fitness, Taxi, Delivery, Education and many other industries. We develop solutions for B2B, B2G and retail. [... view MetaProject profile ]- Location
- San Francisco, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 20 Projects Listed
The Go-To Technology Partner
Ace Infoway is a passionate "GO-TO" Technology Partner for Web/Software Agencies and Businesses in various industry verticals, across the globe as an extended partner and offshore development center. With a Tech-focused vision, we ensure to create success stories for their clients above all else. [... see all Ace Infoway reviews ]- Location
- Los Angeles, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $23/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 5 Projects Listed
Top Healthcare Product, Technology, & Venture Design Firm
Sidebench is the top healthcare technology design and software engineering firm in the US. We combine strategy, design, technical architecture at every point of our process. We are known for delivering extraordinary business results. [... see all Sidebench reviews ]- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 11 Projects Listed
Unlimited Design & Development. One Flat Monthly Rate.
Honter Studio is a California-based design agency offering unlimited design subscription services and full web/app development. We help startups and fast-growing teams launch brands, build platforms, and scale creative output all under one flat monthly rate. [... see all Honter Studio reviews ]- Location
- San Diego, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 12 Projects Listed
Top AI, Mobility, and IoT Software Consulting and Development Agency
Fusion Informatics is a leading software development and consulting company specializing in AI & IoT, helping businesses enhance Customer Experience, achieve Operational Excellence, and drive Digital Transformation. We deliver cutting-edge digital solutions ranging from AI and IoT to mobile apps. [... see all Fusion Informatics reviews ]- Location
- San Francisco, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 5 Projects Listed
Apps Solution For Every Nation.
APPSNATION is the USA's top leading mobile application development company providing multiple Mobile App development services in IOs, Android, IoT, AR/VR, Games app development, Cross-platform, Wearable, eCommerce and much more. Contact Us to boost your Company's potential for next-level excellence. [... see all AppsNation reviews ]- Location
- Los Angeles, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $50/hr
- Minimal Budget
- Under $1,000
- Portfolios Count
- 7 Projects Listed
We Help Data Driven Companies Build Measurable Generative AI Solutions.
At Markovate, we specialize in transforming businesses through cutting-edge AI and digital solutions. Our commitment is to drive innovation and operational excellence in every project. [... see all Markovate reviews ]- Location
- San Francisco, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 5 Projects Listed
Elevating User Experiences through Product Design
Lazarev. is a powerhouse team of UX strategists, UI/UX designers, product & motion designers and business analysts. We specialize in building revolutionary products and redesigning web platforms/apps for early-stage startups and established brands. [... see all Lazarev. reviews ]- Location
- San Francisco, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $120/hr
- Portfolios Count
- 10 Projects Listed
Since 2002 in the software development business. Companies from 27 industries choose us.
With over 20 years of industry experience, Gecko Dynamics is a trusted partner for startups and enterprises. Our team delivers end-to-end solutions using Java, Angular, Flutter, and AWS. From ideation to post-launch support, we're dedicated to driving progress for our clients across industries. [... see all Gecko Dynamics reviews ]- Location
- San Francisco, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $50/hr
- Portfolios Count
- 11 Projects Listed
- Consagous Technologies is a global IT solutions provider specializing in end-to-end web and mobile application development. Since 2008, the agency has delivered over 700 projects for more than 689 clients worldwide, offering services such as mobile app development, custom software, UI/UX design, web [... view Consagous Technologies profile ]
- Location
- Los Angeles, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 17 Projects Listed
Innovative design and development
Mobikasa is a full-service global digital agency headquartered in New York, delivering high-performance web, mobile, and e-commerce solutions since 2011. We help brands scale through custom apps, scalable storefronts, and data-driven marketing, blending strategy, design, and technology. [... see all Mobikasa reviews ]- Location
- Los Angeles, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 13 Projects Listed
Digital Product UX, Design & Development
ActiveColor is an award-winning digital agency driving positive change through innovative digital products in healthcare and beyond. [... see all ActiveColor reviews ]- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $145/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 8 Projects Listed
Top Mobile App and Web Development Company
Developer Bazaar Technologies is a Top Ranked Mobile App & Custom Software Development Company, specializing in transforming ideas into stunning realities and Creating a Positive Impact and is Headquartered in Indore, India. [... see all Developer Bazaar Technologies reviews ]- Location
- Fremont, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 6 Projects Listed
Automate Innovate Dominate.
HashStudioz Technologies is an award-winning product development company providing innovative IT solutions to clients from startups to Fortune 500 firms. With a team of over 1,000 experts, they have successfully completed 200+ projects, offering advanced technologies such as IoT, Blockchain, Cloud Computing [... see all HashStudioz Technologies reviews ]- Location
- Altadena, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 4 Projects Listed
Your Innovation Partner
ITRex delivers end-to-end AI and data solutions from strategic planning to real-world deployment. The companys expertise spans LLM integration, RAG, copilots, SLMs, and autonomous AI agents, all engineered for reliability and scale. [... see all ITRex Group reviews ]- Location
- Aliso Viejo, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 5 Projects Listed
Guaranteeing a 5 star experience!
Innofied is an award-winning B2B AI software development company with 600+ successful projects since 2012, helping businessesincluding Fortune 500 companieswith modern AI and SaaS solutions. With a global presence, our game-changing automated solutions continue to drive success across industries. [... see all Innofied Solution reviews ]- Location
- Sunnyvale, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 20 Projects Listed
Bringing ideas to life one step at a time.
Kaizen Apps specializes in innovative application development, offering personalized consultations to turn your ideas into impactful digital solutions. Start your project with our expert guidance today. [... see all Kaizen Apps reviews ]- Location
- Vacaville, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $65/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 4 Projects Listed
Don't Settle for Average. Work With the Best!
Smart IT offers core IT development services and forms dedicated software engineering teams for long-term projects. Our talent has a rich background in competitive programming and gives us an edge when it comes to thinking outside the box. We guarantee 5 hrs of timezone overlap, regardless of your location [... see all Smart IT reviews ]- Location
- San Francisco, California
- Number of Employees
- 50 - 99
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 6 Projects Listed
Related Services in California
Mobile App Development Specializations in California
Mobile App Development Companies in California
- Anaheim
- Bakersfield
- Beverly Hills
- Burbank
- Calabasas
- California City
- Carlsbad
- Chula Vista
- Concord
- Corona
- Costa Mesa
- Culver City
- Dublin
- El Segundo
- Encinitas
- Folsom
- Fremont
- Fresno
- Glendale
- Irvine
- Laguna Beach
- Long Beach
- Los Altos
- Los Angeles
- Mountain View
- Newport Beach
- Oakland
- Ontario
- Orange County
- Palo Alto
- Pasadena
- Pleasanton
- Riverside
- Roseville
- Sacramento
- Salinas
- San Diego
- San Francisco
- San Jose
- San Mateo
- San Ramon
- Santa Ana
- Santa Barbara
- Santa Clara
- Santa Clarita
- Santa Monica
- Santa Rosa
- Sunnyvale
- Temecula
- Torrance
- Walnut
- Walnut Creek
- West Hollywood
- Westlake Village
- Woodland
About The Author and Expert Reviewer
Selina Garcia has authored 500+ articles and edited 50+ published books in economics, law, and history. Her unique blend of experiences allows her to approach content creation from a well-rounded perspective. Currently, Selina applies her expertise to producing insightful articles on IT, software, and applications for DesignRush.
Sergio is a technology leader with over six years of experience managing global teams and delivering projects across fintech, sportstech, and B2B platforms. At DesignRush, he drove product growth and development execution, building tools that speed up processes by 95% and cut costs by 35% while maintaining full uptime.
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