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.

Best California Mobile App Developers

14 Companies - Rankings updated: September 03, 2026

Each agency undergoes DesignRush evaluation for professional expertise and genuine client satisfaction to assist your search. Some featured placements are paid.

Expertise
Finance
Under $1,000
Sort by: Sponsored
United States × California × Finance × Under $1,000 × Clear Filters

  • Probey Services

    Verified Verified by the DesignRush team for authenticity and credibility.

    World's #1 Rated & Reviewed App, Website & Software Development Company

    Specializing in iOS, Android, and Flutter app development, Probey Services builds custom solutions that grow with businesses. Backed by 12+ years of experience and a team of 320+ specialists, it has delivered 1,800+ projects and served 120+ clients, including Waze and the Cleveland Clinic...

    Top Services:

    • Mobile App Development
    • Software Development
    • Web Development
    • Web Design
    • WordPress Website Design
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $10/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    94 Projects Listed

    Probey Services Services

    • Mobile App Development
    • Software Development
    • Web Development
    • Web Design
    • WordPress Website Design
    • Digital Marketing
    • Digital Services
    • SEO
    • IT Services
    • AI Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Bartisans
    • Samyakk
    • 30 Days Fitness
    • Isharya
    • The Estate Residences
    • VegenMart
    • Fresh Menu Application
    • PRAO Fashion Jewellery
    • Audentia Space
    • Wings of Change
    Data sourced from the agency's DesignRush profile

    Probey Services Reviews & Testimonials

    • Rajat Sinh
      Rajat Sinh Founder at Aaayan Systems
      5.0 ★

      Web Development Review from Rajat Sinh

      Probey transformed our outdated website into a modern, high-performing platform by understanding our business goals and delivering the right solutions. Since the launch, we have seen significant growth in website traffic, lead conversions, and operational efficiency through their backend integrations. Impressed with their expertise and quality of work, we also trusted Probey with our CRM development project as well. Thank you to the entire Probey Services team for your professionalism and support.

    • Roshan
      Roshan CEO at NanoTherapX
      5.0 ★

      Web Design Review from Roshan

      This is Roshan, CEO at NanoTherapX. Working with Probey Services for our CRM Development. What stood out most was their stability, consistency, reliability, and a smooth implementation. The CRM has streamlined our client management, improved team efficiency, and helped us manage operations more effectively. Since its implementation, we've seen better productivity and consistent business growth. I highly recommend Probey Services UK to any business looking for a reliable technology partner.

    • Tejaswini
      Tejaswini Director at Green Matter Packaging
      5.0 ★

      Mobile App Development Review from Tejaswini

      What stands out most about Probey Services is their discipline-no missed calls, no vague timelines, and no surprises. They built our mobile app with a level of professionalism that made us feel like a priority throughout the project. The delivery was on schedule, the code quality was excellent, and the final product met high standards. Since the app launch, we've seen consistent business growth, and managing customer orders has become much more efficient. I highly recommend Probey Services UK to any business looking for a dependable technology partner.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    5.0 5.0 (110)
    5.0 5.0 (1)

  • iapp Technologies LLP

    Innovation Beyond Imagination

    iApp Technologies: Trusted digital product development partner helping brands turn ideas into powerful & scalable solutions. We specialize in designing and building high-performance Web and Mobile Apps (iOS + Android) that align with evolving market demands and deliver measurable business impact...

    Top Services:

    • Mobile App Development
    • Blockchain
    • AI Development
    • Web Development
    • UI/UX Design
    • Show more
    Location
    San Ramon, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $20/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    60 Projects Listed

    iapp Technologies LLP Services

    • Mobile App Development
    • Blockchain
    • AI Development
    • Web Development
    • UI/UX Design
    • Web Design
    • eCommerce Development
    • IT Services
    • WordPress Website Design
    • Wearables
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • VPN Proxy Master
    • Poster App Lab
    • Pool Ride
    • ChiroRing App
    Data sourced from the agency's DesignRush profile

    iapp Technologies LLP Reviews & Testimonials

    • Shubhpreet Sidhu
      Shubhpreet Sidhu CEO at SASA Innovations
      5.0 ★

      Mobile App Development Review from Shubhpreet Sidhu

      iapp Technologies provided an exceptional experience in developing the SASA Rides mobile app for both Android and iOS platforms. Their team demonstrated outstanding professionalism, clear communication, and a strong commitment to delivering high-quality results. Every stage of the app development was handled efficiently, with timely updates and meticulous attention to detail. They were responsive to feedback, proactive in offering innovative solutions, and genuinely dedicated to client satisfaction. The expertise and dedication they brought to the project made the entire process smooth and stress-free. I highly recommend iapp Technologies for reliable, skilled, and client-focused mobile app development.

    • Seth Horsley
      Seth Horsley Founder at StateCert
      5.0 ★

      Web Design Review from Seth Horsley

      I worked with them extensively and they have been very helpful and extremely responsive and have provided very high quality work. Definitely recommend!

    • Gursewak Singh Brar
      Gursewak Singh Brar Director at Third Pole Immigration Services
      5.0 ★

      Web Development Review from Gursewak Singh Brar

      iapp Technologies provided excellent service with timely delivery, clear communication, and high-quality results. Their team is professional, responsive, and truly dedicated to client satisfaction. Highly recommended!

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    4.6 4.6 (3)
    4.1 4.1 (98)

  • ScrumLaunch

    We Build Innovative Products for Startups and Larger Brands

    There are a lot of choices when it comes building a software product. The reason people choose ScrumLaunch is because of our high touch approach, high quality work and most importantly, because we have built our own software products and have a deep understanding of how to succeed with iterative, rapid...

    Top Services:

    • Staff Augmentation
    • Software Development
    • Mobile App Development
    • Blockchain
    • Software Testing
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $100/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    81 Projects Listed

    ScrumLaunch Services

    • Staff Augmentation
    • Software Development
    • Mobile App Development
    • Blockchain
    • Software Testing
    • Web Design
    • eCommerce Development
    • Web Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • CampusReel
    • GoGipper
    • vLoop
    • Vylla
    Data sourced from the agency's DesignRush profile
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  • Dino Code LA

    Where Genuine Brilliance Effortlessly Shines.

    We help our clients succeed by creating unique costume websites, brand identities, digital experiences, and print materials that communicate clearly, achieve marketing goals, and look fantastic...

    Top Services:

    • Branding
    • Creative Services
    • Mobile App Development
    Location
    Del Rey, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $45/hr
    Minimal Budget
    Under $1,000

    Dino Code LA Services

    • Branding
    • Creative Services
    • Mobile App Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Tesly
    • BabyCito
    • Kind Joe
    Data sourced from the agency's DesignRush profile

    Dino Code LA Reviews & Testimonials

    • Jeremy Jushchyshyn
      Jeremy Jushchyshyn Partner at Liberty Manufacturing Group, LLC at Liberty Manufacturing Group
      5.0 ★

      Mobile App Development Review from Jeremy Jushchyshyn

      With the development of our Mobile App, Dino Code LA performed an amazing work. Their team was quick to respond and produced a great application that runs smoothly on all platforms. We are quite happy with the result.

    • Michael Witte
      Michael Witte Co-Founder of Workrise at Workrise
      5.0 ★

      Branding Review from Michael Witte

      I had a very specific vision for my website design (I am a bit of a perfectionist and had high expectations), and this team absolutely delivered. I had tried working with other designers before, but things did not turn out the way I wanted. I'm so glad this team really understood what I was looking for. Huge thanks

    • Oscar Estudillo
      Oscar Estudillo Head Chef at Fithealthymeals.com
      4.8 ★

      Small Business Review from Oscar Estudillo

      I run a meal prep business, and Dino Code LA completely transformed the way we operate. They built a mobile-friendly, SEO-optimized e-commerce website and automated the entire system. Thanks to them, were busier than ever with all the leads coming in.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    4.6 4.6 (3)
    5.0 5.0 (7)

  • rowdy ferret design

    Oakland Web Design and Graphics

    A team of friendly, local, award-winning creative web developers and designers. Our clients love us!...

    Top Services:

    • WordPress Website Design
    • Web Design
    • Graphic Design
    • Mobile App Development
    • Show more
    Location
    Oakland, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $150/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    5 Projects Listed

    rowdy ferret design Services

    • WordPress Website Design
    • Web Design
    • Graphic Design
    • Mobile App Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • University of California Berkeley
    • Columbia University
    • Oakland BNI
    • Aurora Catering Bay Area
    • Bay Area Short Sale Agents
    • NextWave Safety
    • Holistic Hyperbarics
    • Ross Acupuncture Oakland
    Data sourced from the agency's DesignRush profile

    rowdy ferret design Reviews & Testimonials

    • Bryan Turo
      Bryan Turo Review from Google
      5.0 ★

      Bryan Turo's Review Sourced from Google

      Hunter and Rowdy Ferret Design provided web development for my small business for over four years and helped us in innumerable ways to enhance our website! From guidance and consultancy to the execution of many development tasks, including the build out of our entire course catalog, scheduling tools, ticketing tools, and commercial tools, to the creation of tutorials and videos to help us best use our own site, Hunter always went above and beyond to ensure we were satisfied while keeping an eye on the business outcomes we wanted. Along the way, Hunter was always a pleasure to work with. I strongly recommend Hunter and Rowdy Ferret for web design and development to any company, big or small!

    • Stu Sweetow
      Stu Sweetow Review from Google
      5.0 ★

      Stu Sweetow's Review Sourced from Google

      Hunter has been my web designer for several years. He took my ancient site and turned it in to an interactive site that has good SEO. He set up a valuable search function, made it a secure site and included a sign-up page that sends me new customers. He is easy to work with, creative with graphics and knows coding. He even showed me how to make changes and has produced tutorials for me when I get stuck. I highly recommend him. And the ferret is fun!

    • Lyssandra Guerra
      Lyssandra Guerra Review from Google
      5.0 ★

      Lyssandra Guerra's Review Sourced from Google

      So happy I found Hunter. I needed a spruce up on my website - it felt cluttered and disorganized. They're insight on how to make it more navigate-able for my audience to find my content feels HUGE. Also, so many new ideas on how to really optimize my website to find new clients became exciting and didn't (doesn't!) feel dreadful like it did in the past. Hunter is quick and efficient, I feel really supported and inspired to do the changes that have been looming over my head.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    5.0 5.0 (8)

  • Bytes Technologies

    Unleash, Inspire, Elevate

    Founded in 2022, Bytes Technologies began an innovative journey. Our early dedication to delivering premium web solutions and pioneering SEO strategies laid the foundation for our success. Serving clients worldwide, we've built a reputation for excellence. Based in Sacramento, California, our unwavering...

    Top Services:

    • Graphic Design
    • Web Design
    • UI/UX Design
    • Digital Marketing
    • Mobile App Development
    • Show more
    Location
    Sacramento, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    5 Projects Listed

    Bytes Technologies Services

    • Graphic Design
    • Web Design
    • UI/UX Design
    • Digital Marketing
    • Mobile App Development
    • Social Media Marketing
    • Web Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • InsideView
    • Clear Books CPA
    • Zara Construction Group
    • Expert Memoire
    • Capital Smart City
    • Broadway pizza
    • Open ALPR
    • Hankin Group
    • Remigton Vernick Engineers
    • Sargenti's
    Data sourced from the agency's DesignRush profile
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  • Square63

    High-Tech Bespoke Software Solutions

    We design, develop, and deliver high-tech bespoke software solutions for SME's, Enterprises, funded startups and ventures...

    Top Services:

    • Software Development
    • Mobile App Development
    • IoT
    • AI Development
    • eCommerce Development
    • Show more
    Location
    Dublin, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $25/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    2 Projects Listed

    Square63 Services

    • Software Development
    • Mobile App Development
    • IoT
    • AI Development
    • eCommerce Development
    • Web Development
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Wishwash
    • One2Three
    • AFB Ghana
    • StreetWyze
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

  • SoftClouds

    Your ultimate cloud service provider

    At the forefront of IT, CRM & CX solutions, SoftClouds, headquartered in San Diego, CA, emerges as a transformative force. As an esteemed Oracle Platinum Partner, we specialize in crafting ERP solutions, cloud, mobile, and digital solutions that elevate corporate profitability while seamlessly unraveling...

    Top Services:

    • Cloud Consulting
    • IT Services
    • ERP Consulting
    • Mobile App Development
    • Show more
    Location
    San Diego, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $50/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    5 Projects Listed

    SoftClouds Services

    • Cloud Consulting
    • IT Services
    • ERP Consulting
    • Mobile App Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Cisco
    • Intuit
    • Visa
    Data sourced from the agency's DesignRush profile

    SoftClouds Reviews & Testimonials

    • Ashlesha Gajbhiye
      Ashlesha Gajbhiye Review from Google
      4.0 ★

      Ashlesha Gajbhiye's Review Sourced from Google

      Working at SoftClouds has been an incredibly rewarding experience. The team feels more like a family, where everyone genuinely supports and uplifts one another. The collaborative and inclusive work culture has played a key role in my professional and personal growth.

    • Aarthi Jenny
      Aarthi Jenny Review from Google
      5.0 ★

      Aarthi Jenny's Review Sourced from Google

      SoftClouds has a fantastic company culture and an exciting work environment. As a Project Manager, I am grateful to be part of an organization that values work-life balance, making it a great asset for women professionals. I have been given incredible opportunities to work on engaging projects, and I look forward to continued growth and success with SoftClouds.

    • Deepak Haridoss
      Deepak Haridoss Review from Google
      5.0 ★

      Deepak Haridoss's Review Sourced from Google

      Soft Clouds is an exceptional workplace that offers abundant career growth opportunities. The leadership team is outstanding, consistently prioritizing employee well-being. I thoroughly enjoy the remote work setup, which comes with numerous benefits. Overall, Soft Clouds is a fantastic place to work, offering a healthy work-life balance and ample opportunities for professional development.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    4.9 4.9 (26)

  • Qodestar

    Mobile App Experiences That Inspire

    Qodestar is a digital studio focused on building clean, high-performing mobile apps and digital experiences. We partner with startups, growing businesses, and creative teams to transform ideas into intuitive mobile solutions through thoughtful design and development...

    Top Services:

    • Mobile App Development
    • Product Design
    • UI/UX Design
    • Digital Marketing
    • SEO
    • Show more
    Location
    San Diego, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $75/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    1 Project Listed

    Qodestar Services

    • Mobile App Development
    • Product Design
    • UI/UX Design
    • Digital Marketing
    • SEO
    • PPC
    • Social Media Marketing
    • eCommerce
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • 15 Fifteen Media
    • CareBridge
    • LMI Colorado
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

  • Website Design Hive

    Smart Websites Built For Growth

    Website Design Hive creates stunning websites, logos, apps, and animations while driving growth through SEO, PPC, and digital marketing. We turn ideas into results-driven online experiences...

    Top Services:

    • Web Design
    • Web Development
    • eCommerce Development
    • Logo Design
    • Branding
    • Show more
    Location
    Campbell, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $450/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    3 Projects Listed

    Website Design Hive Services

    • Web Design
    • Web Development
    • eCommerce Development
    • Logo Design
    • Branding
    • SEO
    • Creative Services
    • Social Media Marketing
    • Mobile App Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Dow Chemicals
    • Shield Roofing
    • Homeward
    • Realmart Realty
    • Astec Energy
    • Chur Outdoors
    • Statik
    • SparkFun Electronics
    • Training Consultants
    • Instant Tax Solutions
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

  • Covinten Media

    Specializing in technology development and marketing services.

    Covinten Media is a dynamic agency specializing in both technology development and marketing services. We create advanced digital products for businesses and implement marketing strategies to boost brands visibility and growth. Our dual expertise ensures comprehensive support for your business's success in a...

    Top Services:

    • Web Design
    • Web Development
    • Mobile App Development
    • UI/UX Design
    • SEO
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Minimal Budget
    Under $1,000

    Covinten Media Services

    • Web Design
    • Web Development
    • Mobile App Development
    • UI/UX Design
    • SEO
    • Digital Marketing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • GV Studio
    • Velocity Lux
    • Beach Catering
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

  • USA Design Expert

    Where Creativity Meets Excellence

    USA Design Expert delivers creative, high-quality design solutions from logos to websites that help your brand stand out...

    Top Services:

    • Graphic Design
    • Logo Design
    • Web Design
    • Web Development
    • SEO
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    1 Project Listed

    USA Design Expert Services

    • Graphic Design
    • Logo Design
    • Web Design
    • Web Development
    • SEO
    • Mobile App Development
    • Video Production
    • Digital Marketing
    • PPC
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Nintendo
    • IBM
    • P&G
    Data sourced from the agency's DesignRush profile
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  • Softitec

    We Are A Striving Computer IT Consulting

    Softitec is a custom software development company delivering tailored web, mobile, and enterprise-grade digital solutions. Serving startups and enterprises alike, the agency builds scalable platforms that streamline operations, improve customer engagement, and accelerate growth. With a focus on innovation and...

    Top Services:

    • Software Development
    • IoT
    • Mobile App Development
    • Wearables
    • Web Design
    • Show more
    Location
    Newport Beach, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $70/hr
    Minimal Budget
    Under $1,000

    Softitec Services

    • Software Development
    • IoT
    • Mobile App Development
    • Wearables
    • Web Design
    • eCommerce Development
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • SSD Alarm
    • Kilowatt Financial
    • Disney
    • Hyundai
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

  • Source Code Lab

    Best Game Development Company in USA.

    Source Code Lab is the Best Custom Game Development Company in Usa/India.Our game developers build remarkable games compatible with the most popular platforms to attract the attention of a wider audience...

    Top Services:

    • Graphic Design
    • IT Services
    • VR/AR
    • Mobile App Development
    • Wearables
    • Show more
    Location
    San Francisco, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $25/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    1 Project Listed

    Source Code Lab Services

    • Graphic Design
    • IT Services
    • VR/AR
    • Mobile App Development
    • Wearables
    • Web Design
    • UI/UX Design
    • Web Development
    • Phone Answering Services
    • Customer Support
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Stripe, Inc.
    • Skrill
    • Entity
    • Malta Gaming Authority
    • PayPal
    Data sourced from the agency's DesignRush profile

    Source Code Lab Reviews & Testimonials

    • rakeen panjwani
      rakeen panjwani Review from Google
      5.0 ★

      rakeen panjwani's Review Sourced from Google

      I had the pleasure of working at this outstanding game development company before my move to Canada. The experience was nothing short of amazing!. The company fosters a very friendly and inclusive culture, and the management is exceptionally supportive. The team's collaborative spirit and innovative approach to projects made every day exciting and fulfilling. If you're looking for a place to grow, learn, and be a part of something great, this is the company to join.

    • Vaibhav Patel
      Vaibhav Patel Review from Google
      5.0 ★

      Vaibhav Patel's Review Sourced from Google

      Outstanding team and cutting-edge technology. The custom games developed from this platform are visually stunning and run smoothly.

    • Brijesh Vaishnav
      Brijesh Vaishnav Review from Google
      5.0 ★

      Brijesh Vaishnav's Review Sourced from Google

      SoucecodeLab is a standout in the game development Company, known for its innovative approaches, exceptional creativity, and commitment to delivering high-quality gaming experiences.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    5.0 5.0 (8)

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