Top 20 Startup App Developers in California
List of the Best Startup Mobile App Development Companies in California
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- $25,000+
- $100 - $149 / hr
- 10 - 49
- Los Angeles, CA
Ability to deliver
40/40.0- 20 Reviews
- 10 Clients & Experience
- 10 Market Presence
Service focus
- 60% Mobile App Development
- 40% Other
-
- $10,000+
- $50 - $99 / hr
- 50 - 249
- Irvine, CA
Ability to deliver
38/40.0- 19 Reviews
- 10 Clients & Experience
- 9 Market Presence
Service focus
- 55% Mobile App Development
- 45% Other
-
- $25,000+
- $100 - $149 / hr
- 50 - 249
- Los Angeles, CA
Ability to deliver
37.3/40.0- 17.6 Reviews
- 10 Clients & Experience
- 9.7 Market Presence
Service focus
- 40% Mobile App Development
- 60% Other
-
- $50,000+
- $100 - $149 / hr
- 50 - 249
- Los Angeles, CA
Ability to deliver
33.4/40.0- 17 Reviews
- 9.6 Clients & Experience
- 6.8 Market Presence
Service focus
- 50% Mobile App Development
- 50% Other
-
- $50,000+
- $50 - $99 / hr
- 50 - 249
- Santa Monica, CA
Ability to deliver
38.7/40.0- 19 Reviews
- 10 Clients & Experience
- 9.7 Market Presence
Service focus
- 30% Mobile App Development
- 70% Other
-
- $100,000+
- $150 - $199 / hr
- 10 - 49
- Half Moon Bay, CA
Ability to deliver
32.6/40.0- 16.6 Reviews
- 10 Clients & Experience
- 6 Market Presence
Service focus
- 70% Mobile App Development
- 30% Other
-
- $25,000+
- $50 - $99 / hr
- 250 - 999
- Palo Alto, CA
Ability to deliver
28.7/40.0- 15.8 Reviews
- 7.2 Clients & Experience
- 5.6 Market Presence
Service focus
- 40% Mobile App Development
- 60% Other
-
- $10,000+
- $100 - $149 / hr
- 10 - 49
- Los Angeles, CA
Ability to deliver
36.3/40.0- 17.4 Reviews
- 9.5 Clients & Experience
- 9.5 Market Presence
Service focus
- 15% Mobile App Development
- 85% Other
-
- $25,000+
- $150 - $199 / hr
- 10 - 49
- Newport Beach, CA
Ability to deliver
36.9/40.0- 17.6 Reviews
- 10 Clients & Experience
- 9.3 Market Presence
Service focus
- 10% Mobile App Development
- 90% Other
-
- $75,000+
- $150 - $199 / hr
- 2 - 9
- Oceanside, CA
Ability to deliver
32.7/40.0- 16.2 Reviews
- 8.2 Clients & Experience
- 8.3 Market Presence
Service focus
- 10% Mobile App Development
- 90% Other
-
- $10,000+
- $50 - $99 / hr
- 10 - 49
- Santa Monica, CA
Ability to deliver
26.1/40.0- 15.8 Reviews
- 5 Clients & Experience
- 5.3 Market Presence
Service focus
- 35% Mobile App Development
- 65% Other
-
- $25,000+
- $50 - $99 / hr
- 250 - 999
- Pleasanton, CA
Ability to deliver
38.5/40.0- 19 Reviews
- 10 Clients & Experience
- 9.5 Market Presence
Service focus
- 15% Mobile App Development
- 85% Other
-
- $25,000+
- $100 - $149 / hr
- 50 - 249
- Beverly Hills, CA
Ability to deliver
0/40.0- 0 Reviews
- 0 Clients & Experience
- 0 Market Presence
Service focus
- 60% Mobile App Development
- 40% Other
-
- $50,000+
- $25 - $49 / hr
- 50 - 249
- San Francisco, CA
Ability to deliver
36.3/40.0- 16.6 Reviews
- 10 Clients & Experience
- 9.7 Market Presence
Service focus
- 25% Mobile App Development
- 75% Other
-
- $100,000+
- $50 - $99 / hr
- 250 - 999
- San Francisco, CA
Ability to deliver
39.2/40.0- 19.2 Reviews
- 10 Clients & Experience
- 10 Market Presence
Service focus
- 30% Mobile App Development
- 70% Other
Contenders Breakdown
-
- $25,000+
- $50 - $99 / hr
- 1,000 - 9,999
- San Francisco, CA
Ability to deliver
39.8/40.0- 20 Reviews
- 10 Clients & Experience
- 9.8 Market Presence
Service focus
- 10% Mobile App Development
- 90% Other
-
- $25,000+
- $50 - $99 / hr
- 50 - 249
- San Francisco, CA
Ability to deliver
33.9/40.0- 17 Reviews
- 9.4 Clients & Experience
- 7.5 Market Presence
Service focus
- 30% Mobile App Development
- 70% Other
-
- $10,000+
- $25 - $49 / hr
- 250 - 999
- Carlsbad, CA
Ability to deliver
36.2/40.0- 17.8 Reviews
- 9.5 Clients & Experience
- 8.9 Market Presence
Service focus
- 15% Mobile App Development
- 85% Other
-
- $50,000+
- $50 - $99 / hr
- 50 - 249
- San Francisco, CA
Ability to deliver
39.8/40.0- 20 Reviews
- 10 Clients & Experience
- 9.8 Market Presence
Service focus
- 50% Mobile App Development
- 50% Other
-
- $100,000+
- $50 - $99 / hr
- 250 - 999
- San Jose, CA
Ability to deliver
37.2/40.0- 19 Reviews
- 10 Clients & Experience
- 8.2 Market Presence
Service focus
- 50% Mobile App Development
- 50% Other
-
Featured
What are Featured Providers?
-
- $50,000+
- $150 - $199 / hr
- 50 - 249
- Frisco, TX
Services provided
Project HighlightMobile App Frontend Dev for Fintech Company
- Five Pack Creative is developing the frontend of a fintech app for money and credit administration. The app uses iOS and Andriod native languages, as well as AWS and JavaScript as part of its... Read more
See all 16 Reviews -
- $1,000+
- $50 - $99 / hr
- 2 - 9
- Orem, UT
Services provided
Project HighlightWeb Development for Online Gaming Platform
- An online gaming platform hired Busy Human to provide web development. They listened to the client's needs and proposed extra features that enhanced the site's functionalities. ... Read more
See all 6 Reviews-
Reviews mention "knowledgeable"
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Reviews mention "exceeds expectations"
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Reviews mention "personable"
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Reviews mention "professional"
-
- $25,000+
- $25 - $49 / hr
- 50 - 249
- Seattle, WA
Services provided
Project HighlightMobile App Development for Gold Trading Platform
- A gold trading platform hired Zazz to develop a mobile app using React Native. The solution is a digital platform where users can sign up and buy and sell gold. ... Read more
See all 38 Reviews-
Reviews mention "collaborative"
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Reviews mention "professional"
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Reviews mention "great team"
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Reviews mention "knowledgeable"
-
- $25,000+
- $25 - $49 / hr
- 1,000 - 9,999
- Orlando, FL
Services provided
Project HighlightMobile App & Software Development for Medical Device Company
- Simform was hired by a medical device company to build a mobile app for iOS and Android. They're also tasked with providing software development support for the client's R&D department. ... Read more
See all 62 Reviews-
Reviews mention "reasonable pricing"
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Reviews mention "easy to work with"
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Reviews mention "great project management"
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Reviews mention "knowledgeable"
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-
- $25,000+
- $100 - $149 / hr
- 10 - 49
- Los Angeles, CA
Services provided
Project HighlightMobile App Dev for Nonprofit Organizations' Funding Platform
- Goji Labs developed a mobile app for iOS and Android in React Native for a nonprofit organizations' funding platform. The team managed discovery workshops, UX/UI design, bug fixing, testing, and... Read more
See all 70 Reviews-
Reviews mention "receptive"
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Reviews mention "adaptable"
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Reviews mention "passionate about their work"
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Reviews mention "transparent"
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- $10,000+
- $50 - $99 / hr
- 50 - 249
- Irvine, CA
Services provided
Project HighlightPrototype Design & Dev for Sports Gaming & Social Site
- Wve Labs designed and built a clickable prototype of a mobile app for a sports gaming and social site using Figma. Their work included logo design, color scheme definition, and UI/UX design.... Read more
See all 27 Reviews-
19 reviews mention Mobile App Development
-
Reviews mention "reasonable pricing"
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Reviews mention "accommodating"
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Reviews mention "well-organized projects"
-
Featured
What are Featured Providers?
-
- $10,000+
- $100 - $149 / hr
- 10 - 49
- Austin, TX
Services provided
Project HighlightApp & Pitch Deck Dev for Political Data Collection Company
- Jackrabbit Mobile has designed and developed a mobile app for a political data collection company. The team has built the app's data model, designed a brand image, and created a pitch deck for... Read more
See all 18 Reviews-
Reviews mention "transparent"
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Reviews mention "creative"
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Reviews mention "knowledgeable"
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Reviews mention "openness"
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- $50,000+
- $50 - $99 / hr
- 10 - 49
- București, Romania
Services provided
Project HighlightMobile App Design & Dev for Medical Imaging Provider
- Atta Systems has developed the mobile app of a medical imaging infrastructure provider. Their work has included UI/UX design, iOS and Android development (using React Native and Expo), testing, and... Read more
See all 34 Reviews-
Reviews mention "establish clear expectations"
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Reviews mention "high-quality work"
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Reviews mention "reasonable pricing"
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Reviews mention "accommodating"
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- $10,000+
- < $25 / hr
- 50 - 249
- Nadiad, India
Services provided
Project HighlightMobile App Update for Training Gear Manufacturer
- A training gear manufacturer partnered with Groovy Web LLP to fix their mobile apps' compatibility with Android's new update and add user-requested features. The vendor handled the coding part of... Read more
See all 50 Reviews-
Reviewed 1 time in the past 6 months
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Reviews mention "high-quality work"
-
Reviews mention "reasonable pricing"
-
Reviews mention "transparent"
-
-
- $50,000+
- $100 - $149 / hr
- 50 - 249
- Los Angeles, CA
Services provided
Project HighlightWeb & Mobile Dev for Science Education Company
- ISBX launched a software product across Windows, Mac, and iOS, later expanding the scope to include Android and web versions. They provided UI updates and assisted with some initial design work. ... Read more
See all 12 Reviews-
Reviews mention "communicative"
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Reviews mention "unique expertise"
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Reviews mention "knowledgeable"
-
Reviews mention "personable"
-
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- $50,000+
- $50 - $99 / hr
- 50 - 249
- Santa Monica, CA
Services provided
Project HighlightApplication Dev & Mainteance for Data Collection Company
- Sidebench provides application development and maintenance services for a data collection company. The team has fixed bugs on the client's platform, updated its UI/UX design, and developed new... Read more
See all 47 Reviews-
Reviews mention "personable"
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Reviews mention "passionate about their work"
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Reviews mention "accommodating"
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Reviews mention "timely"
-
- $100,000+
- $50 - $99 / hr
- 250 - 999
- San Francisco, CA
Services provided
Project HighlightCustom Software Dev & UI/UX Design for Gorilla Conservation Center
- A gorilla conservation center hired ArcTouch for custom software development and UI/UX design. The team created a platform for sign language education with signs, conversations, and book features.... Read more
See all 34 Reviews-
4.7 out of 5.0 rating for cost
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Reviews mention "transparent"
-
Reviews mention "proactive"
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Reviews mention "knowledgeable"
-
- $25,000+
- $50 - $99 / hr
- 1,000 - 9,999
- San Francisco, CA
Services provided
Project HighlightPlatform, Web App & Mobile App Dev for Software Company
- Vention has developed an end-to-end platform for a software company. The team is responsible for building a database, an iOS and Android mobile app, and a web app.... Read more
See all 79 Reviews-
Reviews mention "knowledgeable"
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Reviews mention "exceptional performance"
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Reviews mention "team players"
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4.7 out of 5.0 rating for cost
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- $50,000+
- $50 - $99 / hr
- 50 - 249
- San Francisco, CA
Services provided
Project HighlightUI/UX Design & App Dev for University
- A university hired Cheesecake Labs to develop an application. The team created a student journey map with the students’ experiences, needs, and expectations.... Read more
See all 53 Reviews-
Reviews mention "proactive"
-
Completed projects in 5 countries
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Reviews mention "timely"
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Reviews mention "exceeds expectations"
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Featured
What are Featured Providers?
-
- $50,000+
- $50 - $99 / hr
- 10 - 49
- San Francisco, CA
Services provided
Project HighlightMobile App Development for Wellness Company
- Geekbears is creating a customized mobile app for a wellness company. The client also wants an admin dashboard to provide their wellness services with a mixture of technologies. ... Read more
See all 21 Reviews-
Completed projects in 10 cities
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Reviews mention "knowledgeable"
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Reviews mention "personable"
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Reviews mention "professional"
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- $25,000+
- $50 - $99 / hr
- 50 - 249
- Montevideo, Uruguay
Services provided
Project HighlightMobile App Design & Development for Curiosity App Provider
- Effectus Software has designed and developed iOS and Android applications for a curiosity app provider. The team has developed the client's MVP and created a backend content management software too.... Read more
See all 19 Reviews-
Reviews mention "easy to work with"
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Reviews mention "professional"
-
Reviews mention "high-quality work"
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4.9 out of 5.0 rating for cost
-
- $10,000+
- $25 - $49 / hr
- 10 - 49
- Austin, TX
Services provided
Project HighlightAndroid & iOS App Development for Real Estate Company
- Black Widow Tech has developed an iOS and Android mobile application for a real estate company. The app leverages ChatGPT technology to generate content real estate agents can use on different... Read more
See all 36 Reviews-
Reviews mention "passionate about their work"
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5.0 out of 5.0 rating for cost
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Reviews mention "great team"
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Reviews mention "efficient"
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- $100,000+
- $50 - $99 / hr
- 250 - 999
- San Jose, CA
Services provided
Project HighlightMobile & Web App Development for Software Company
- Matellio has helped a software company create their iOS, Android, and web-based platform from scratch, using SQL, Java, and AWS as the technology stack. Currently, they manage ongoing support and... Read more
See all 42 Reviews-
Reviews mention "proactive"
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Reviews mention "exceptional results"
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Reviews mention "translate ideas into products"
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Reviews mention "exceeds expectations"
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- $25,000+
- $100 - $149 / hr
- 50 - 249
- Los Angeles, CA
Services provided
Welcome to Citrusbits, a prestigious Development agency that holds a top-ranking position on Clutch. With over 15 years of unrivaled experience, we take pride in our ability to deliver innovative,... Read more
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Reviews mention "passionate about their work"
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Reviews mention "puts the customer first"
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Reviews mention "timely"
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Reviews mention "accessible"
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Featured
What are Featured Providers?
-
- $5,000+
- $25 - $49 / hr
- 10 - 49
- Dallas, TX
Services provided
Project HighlightWeb & Mobile App Development & Management for Moving Company
- Octal Digital developed a mobile app for a consulting firm. The app allows the client to estimate rack space in their warehouse for placing material.... Read more
See all 6 Reviews-
Completed projects in 3 cities
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5.0 out of 5.0 rating for cost
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Reviewed 1 time in the past 6 months
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Reviews mention "high-quality work"
-
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- $100,000+
- $150 - $199 / hr
- 10 - 49
- Half Moon Bay, CA
Services provided
We are a very senior, experienced mobile apps team with an emphasis on startups and enterprise healthcare. From product definition and design, to engineering, growth and analytics, iterative... Read more
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3 reviews mention Mobile App Development
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Reviews mention "passionate about their work"
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Reviews mention "unique expertise"
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Reviews mention "easy to work with"
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- $25,000+
- $50 - $99 / hr
- 250 - 999
- Palo Alto, CA
Services provided
We help businesses with their digital transformation, building scalable products - not projects - to reinvent go-to-market strategies. By harnessing the power of our unique product delivery... Read more
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Reviews mention "proactive"
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Reviews mention "puts the customer first"
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Reviews mention "understands the needs of their clients"
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Reviews mention "knowledgeable"
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- $10,000+
- $100 - $149 / hr
- 10 - 49
- Los Angeles, CA
Services provided
We craft high quality custom software applications and workflow solutions so your business can focus on what matters most. We specialize in helping both startups and Fortune 500 companies succeed in... Read more
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Reviews mention "unique expertise"
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Reviews mention "communicative"
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Reviews mention "accessible"
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Reviewed 1 time in the past 6 months
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- $25,000+
- $150 - $199 / hr
- 10 - 49
- Newport Beach, CA
Services provided
Introducing Revealize: An award-winning website, web & mobile application design, and development company. At Revealize, we pride ourselves on being a company that delivers cutting-edge... Read more
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Reviews mention "adaptable"
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2 reviews mention Mobile App Development
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Reviews mention "easy to reach"
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4.9 out of 5.0 rating for cost
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- $75,000+
- $150 - $199 / hr
- 2 - 9
- Oceanside, CA
Services provided
HypeLife Brands is a progressive brand development + startup marketing agency helping disruptive B2C lifestyle startups and challenger brands engage the Millennial generation. Established in 2001,... Read more
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Reviews mention "team players"
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Completed projects in 3 cities
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Reviews mention "high-quality work"
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Reviews mention "professional"
-
- $10,000+
- $50 - $99 / hr
- 10 - 49
- Santa Monica, CA
Services provided
Our start-up focused team is full of passionate people. Everyone brings their unique set of multi-disciplinary skills to help craft success on every project from the ground up. Since 2004 we've been... Read more
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Reviews mention "collaborative"
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Reviews mention "creative"
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Reviews mention "easy to work with"
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Reviews mention "professional"
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- $25,000+
- $50 - $99 / hr
- 250 - 999
- Pleasanton, CA
Services provided
Project HighlightMobile App Development for Food Production Company
- A food production company hired Altoros for mobile app development.... Read more
See all 34 Reviews-
Reviews mention "high-quality work"
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Reviews mention "easy to work with"
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Reviewed 1 time in the past 6 months
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Reviews mention "hard working"
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- $25,000+
- $100 - $149 / hr
- 50 - 249
- Beverly Hills, CA
Services provided
Swenson He is a passionate team of skilled professionals that works closely with founders of all stages of funding to build custom mobile and web solutions. Our deep experience designing and... Read more
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Reviews mention "transparent"
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Reviews mention "high-quality work"
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Reviews mention "proactive"
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Reviews mention "exceeds expectations"
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- $50,000+
- $25 - $49 / hr
- 50 - 249
- San Francisco, CA
Services provided
JetRuby is a full-cycle custom software development agency. We produce robust, AI-enabled end-to-end digital products and services for businesses that don’t want to compromise on quality.... Read more
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Reviews mention "accommodating"
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Reviews mention "proactive"
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Reviews mention "easy to reach"
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Completed projects in 8 countries
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- $25,000+
- $50 - $99 / hr
- 50 - 249
- San Francisco, CA
Services provided
We are a long-term partner for all startups and established companies that are looking for a dedicated & ready-to-go team of product, design, and engineering experts. We are set for high... Read more
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Completed projects in 5 countries
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Reviews mention "unique expertise"
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Reviews mention "understands the needs of their clients"
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Reviews mention "easy to reach"
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- $10,000+
- $25 - $49 / hr
- 250 - 999
- Carlsbad, CA
Services provided
A3Logics is an IT industry leader in digital transformation whether it is creating custom mobile apps or AI-powered software that allows businesses to thrive in the digital landscape. For over two... Read more
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Reviews mention "transparent"
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Reviews mention "detail-oriented"
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Reviews mention "unique expertise"
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3 fixed price packages
