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

890 Companies - Rankings updated: May 20, 2026

All agencies on DesignRush undergo evaluation based on professional expertise and verified client reviews. Please note that certain placements are paid partnerships.

United States × California ×
  • Helping you release great, amazing products!

    Helping you release great, amazing products!

    QualityLogic is a US-based software and QA testing company with over 35 years of experience. It has successfully completed more than 6,000 programs with a team of over 200 QA engineers and QA test techs, offering turnkey testing solutions.  [... view QualityLogic profile ]
    Location
    Simi Valley, California
    Number of Employees
    100 - 249
  • Inspired IT Solutions

    Inspired IT Solutions

    Inspironix provides custom web data system development, and InspiroScan, a high quality, cost effective bubble form solution. Inspironix specializes in serving apprenticeships, K-12 education, higher education, public agencies, and emergency medical services.  [... view Inspironix, Inc. profile ]
    Location
    Sacramento, California
    Number of Employees
    Under 49
  • Capturing Reality To Design The Future

    Capturing Reality To Design The Future

    ScanTek 3D is a San Diego-based Design & Engineering Firm that develops and enables leading edge lidar solutions that allow for high-precision 3D capture, measurement and analysis across a variety of industries, including manufacturing, construction, engineering and public safety. Our team of experts lead the  [... view ScanTek profile ]
    Location
    San Diego, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $105/hr
  • Grow Your Web Presence

    Grow Your Web Presence

    In what has proven to be the best decision of my life, I took the summer of 2012 off to ride my bike across the country to raise money and awareness for affordable housing.  [... view Kegan Quimby profile ]
    Location
    San Francisco, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $1,000 - $10,000
  • Building unicorns

    Building unicorns

    We are a dynamic team of software developers and creative minds who transform concepts into game-changing mobile and web applications. We are dedicated to being your trusted technology partner.  [... view UPDIVISION profile ]
    Location
    San Francisco, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $10,000 - $25,000
  • Enterprise-grade Solutions

    Enterprise-grade Solutions

    We work with world-class startups, businesses, and institutions as part of an exceptional team of software engineers and technology wizards.  [... view Programize LLC profile ]
    Location
    Riverside, California
    Number of Employees
    100 - 249
  • Complete IT & Digital Service Solutions

    Complete IT & Digital Service Solutions

    California, United States: ConstantMD Inc. ConstantMD, which began operations in 2011 and has worked with more than 100 clients globally, is one of the most well respected offshore software development service providers on the market for its exceptional quality and dedication to innovation. To satisfy the  [... view ConstantMD Inc. profile ]
    Location
    Riverside, California
    Number of Employees
    Under 49
  • Empower Your Business With Custom Marketing Solutions.

    Empower Your Business With Custom Marketing Solutions.

    Kampp Technology & Marketing as the Internet Marketing Company in Orange County, We Implement A Marketing Strategy Specifically For your Business Needs , We do not take one solution fits all approach so with us you are getting 100 % Tailored and customized Internet Marketing Solution which seamlessly  [... view KAMPP Technology And Marketing profile ]
    Location
    Laguna Hills, California
    Number of Employees
    Under 49
    Minimal Budget
    Under $1,000
  • Empowering Innovation, Connecting Excellence

    Empowering Innovation, Connecting Excellence

    FACTn Software, your trusted partner in software engineering outsourcing solutions. Founded with a passion for technological innovation and a commitment to excellence, FACTn Software is dedicated to providing top-tier software engineering talent to companies in the Scandinavian region and beyond.  [... view FACTn Software profile ]
    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $45/hr
    Minimal Budget
    $1,000 - $10,000
  • Crafting User Experiences That Inspire.

    Crafting User Experiences That Inspire.

    Hey there! My name is my name is Eduardo Sebastian Paz, I'm an Interaction Designer and Computer Science Technologist based in Los Angeles. My goal is to create impactful and emotional experiences, both digitally and in the real world, to contribute to a better future for all.  [... view Eduardo Sebastian Paz profile ]
    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Portfolios Count
    1 Project Listed
  • Helping Our Partners Build Scalable Digital Brands

    Helping Our Partners Build Scalable Digital Brands

    At Almost Digital, success is more than a milestone its our mindset. Were a collective of bold, creative women driven by passion, proven skill, and an uncompromising commitment to excellence.  [... view Almost Digital profile ]
    Location
    San Diego, California
    Number of Employees
    Under 49
    Portfolios Count
    1 Project Listed
  • Mobile App and Web Designing Company in California

    Mobile App and Web Designing Company in California

    At Raindrops Infotech, we prioritize your success through expertise, innovation, and unwavering support. Our skilled team customizes solutions that align with your vision, ensuring you achieve your business goals efficiently. Let us partner with you on this journey!  [... view Raindrops Infotech profile ]
    Location
    Garden Grove, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
  • For Seamless Collaborations

    For Seamless Collaborations

    OutsourcingDev is your expert partner in outsourcing services. Founded by a seasoned data Engineer, we offer customized and high-quality solutions. Our comprehensive services cover the entire development lifecycle, and we specialize in assembling dedicated development teams for seamless collaboration.  [... view OutsourcingDev profile ]
    Location
    San Francisco, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $55/hr
    Minimal Budget
    $10,000 - $25,000
  • Bridging the Gap Between Business and Technology

    Bridging the Gap Between Business and Technology

    Rare Crew is a custom software development company with over a decade of experience. Rare Crew develops custom solutions for all kinds of business, from multinational organizations to start-ups looking to grow their business.  [... view Rare Crew profile ]
    Location
    Los Angeles, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $1,000 - $10,000
  • IT Solutions for your Business

    IT Solutions for your Business

    Chiron LLC is the IT Consulting Company which focuses on the Web Development; Custom Web and Mobile Solutions built on OutSystems; Building Collaboration environments with Business Processes automation and integration of different application between each other.  [... view Chiron LLC profile ]
    Location
    Irvine, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $106/hr
    Minimal Budget
    $10,000 - $25,000
  • Enable, innovate, transform

    Enable, innovate, transform

    A team of Tech-savants focused on simplifying complexities in the technology realm. We combine our technical expertise with product mindset that helps Enterprises to strengthen and transform their business by providing state-of-the art software development services.  [... view Agile Soft Systems profile ]
    Location
    Fremont, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $10,000 - $25,000
  • We Build, Grow & Transform Brands

    We Build, Grow & Transform Brands

    Keeks is a creative agency focused on storytelling and design, specializing in developing innovative, thoughtful, and immersive print and digital experiences that seamlessly integrate across a brand's entire ecosystem.  [... view Keeks Creative profile ]
    Location
    San Diego, California
    Number of Employees
    Under 49
    Portfolios Count
    1 Project Listed
  • We Bring Ideas To Life

    We Bring Ideas To Life

    Andrew Baygulov specializes in product and visual design, combining strategy, aesthetics, 3D visualization, and motion design to transform initial concepts into products that people genuinely enjoy using.  [... view Andrew Baygulov profile ]
    Location
    San Francisco, California
    Number of Employees
    Under 49
    Portfolios Count
    1 Project Listed
  • Orange County Web Design

    Orange County Web Design

    GreatLike Media is the leading Orange County web design, SEO and digital marketing company since 2009, located in orange, California, we specializes in custom website design, web development, wordpress design, digital marketing, search engine optimization, PPC, SMM, content marketing....  [... view GreatLike Media profile ]
    Location
    Orange County, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    3 Projects Listed
  • Software Development and Cloud Technology Company

    Software Development and Cloud Technology Company

    We’re a solution-based technology company with a focus in cloud transformation, software development and big data analytics services based out of California. We combine the love for engineering and big data to scale projects and help businesses grow. Our passion for technology drives results-based solutions  [... view Jaxel profile ]
    Location
    Pleasanton, California
    Number of Employees
    Under 49
    Minimal Budget
    $10,000 - $25,000
  • Creating digital reality!

    Creating digital reality!

    Headquartered in Munich, Germany, intive is a leading global digital services company that collaborates with industry leaders to accelerate digital transformation for future products and services.  [... view Intive profile ]
    Location
    Santa Clara, California
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $99/hr
  • Driving the Digital World Forward

    Driving the Digital World Forward

    Metamins specializes in creating high-loaded web solutions, mobile applications, and IoT technologies. As a preferred partner for innovation-oriented companies, we provide best-in-class R&D services, extending our clients' reach to millions of users worldwide.  [... view Metamins profile ]
    Location
    Burlingame, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $10,000 - $25,000
  • Innovate, Iterate, Impress

    Innovate, Iterate, Impress

    With an unwavering commitment to excellence, we have cemented our position as the go-to agency for innovative and groundbreaking digital marketing solutions. At IDG, we possess a definite belief in the power of brand elevation and transformative growth. Our team of experts, armed with unparalleled expertise  [... view Infinite Digital Group profile ]
    Location
    Concord, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $120/hr
    Minimal Budget
    $1,000 - $10,000
  • Design. Build. Experience.

    Design. Build. Experience.

    Britelite Immersive is a creative technology agency that places people and brands at the center of immersive and interactive experiences.  [... view Britelite Immersive profile ]
    Location
    San Francisco, California
    Number of Employees
    Under 49
    Minimal Budget
    $50,000 & Up
  • Global Digital Consulting Company. Adobe Commerce, Salesforce, OutSystems, Microsoft Development

    Global Digital Consulting Company. Adobe Commerce, Salesforce, OutSystems, Microsoft Development

    Ranosys is an CMMI Level 3 Global Digital Consulting Company headquartered in Singapore with international footprints in the UK, US, Middle East and APAC regions. With our progressive vision, and relentless dedication- we’re on a mission  to help our clients achieve their Tomorrow, Today. Combining the  [... view Ranosys Technologies profile ]
    Location
    Santa Clara, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $25,000 - $50,000
  • Create Value With Us

    Create Value With Us

    After a discovery process, we map business and technical requirements to provide solutions that create value for our clients and to their customers.  [... view Stylers Group profile ]
    Location
    Oceanside, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $10,000 - $25,000
  • Build Your High Tech Remote Teams in 24 Hours

    Build Your High Tech Remote Teams in 24 Hours

    VinnCorp is the best Digital Transformation Firm, with a wide range of services being offered to the clients like Web Development, Enterprise systems, Social Media Marketing, UI/UX Designing, Mobile App Development, and System Integration performed by the core team with years of experience.  [... view VinnCorp profile ]
    Location
    Elk Grove, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
  • Connecting Hotels & Affluent Guests Globally

    Connecting Hotels & Affluent Guests Globally

    HMC is the worlds leading provider of outsourced database management and loyalty marketing programmes for premium hotel organizations. Our core competencies are the creation, implementation, management and marketing of custom-made programmes designed to drive incremental revenue and profits into each partner  [... view Hospitality Marketing Concepts profile ]
    Location
    Newport Beach, California
    Number of Employees
    250 - 499
  • Turn Opportunities Into Success.

    Turn Opportunities Into Success.

    Digital Marketing and Creative Consulting - strategy, technology, and design are the cornerstones of developing user experiences that support your needs and strengthen your business.  [... view Venice Solution profile ]
    Location
    San Mateo, California
    Number of Employees
    Under 49
  • AKOS - Custom software development and consultancy services

    AKOS - Custom software development and consultancy services

    AKOS is a leading development agency for growth-stage organizations in high-impact industries. We help our clients achieve their goals through our expert development solutions.  [... view AKOS profile ]
    Location
    San Diego, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $149/hr
    Minimal Budget
    $25,000 - $50,000
  • Leading UI/UX design experts

    Leading UI/UX design experts

    We are a product design studio with the power to change the world by improving the entire design process within organizations.  [... view Slick profile ]
    Location
    San Jose, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $10,000 - $25,000
  • Leading Software Development Firm

    Leading Software Development Firm

    One-stop shop for IT software development (web & mobile) with offices in Malaysia and Romania.  [... view YOPESO profile ]
    Location
    San Mateo, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $25,000 - $50,000
  • Innovative Software Solutions for Your Business

    Innovative Software Solutions for Your Business

    Sweetsoft is a client-oriented software development and outsourcing company that specializes in web, mobile and desktop app development, data science, QA & Automated testing, bot development and UX/UI services. With a presence in Santa Monica, Budva, and Kharkiv, our experts can join existing teams or execute  [... view SweetSoft INC. profile ]
    Location
    Santa Monica, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $50,000 & Up
  • Experts in Web Design and Development

    Experts in Web Design and Development

    Frugalnova is a well-known brand in the industry of website and mobile app development. Our worldwide headquarters are in Mumbai, India, with operations in California, the United States, and London. We serve customers from all around the world. Our cutting-edge technology helps our partners optimize their  [... view Frugalnova profile ]
    Location
    Berkeley, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $15/hr
    Minimal Budget
    $1,000 - $10,000
  • We Build Startups

    We Build Startups

    E8 Labs goes beyond the typical agency role by providing founders and startups with a distinctive approach to reaching product market fit at an accelerated pace. In addition to developing an MVP, we also prioritize scalability for subsequent versions.  [... view E8 Labs profile ]
    Location
    San Jose, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $199/hr
    Minimal Budget
    $25,000 - $50,000
  • Results-Focused Methodology

    Results-Focused Methodology

    We are more than just a group of knowledgeable software developers. We are a company that provides product solutions, from concept to launch.  [... view All Star Technology profile ]
    Location
    Irvine, California
    Number of Employees
    500 - 999
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $10,000 - $25,000
  • Startup professionals you can trust

    Startup professionals you can trust

    Founded by a team of seasoned startup professionals, Beanmachine is a dedicated platform designed to assist entrepreneurs and businesses in transforming their mobile or web ideas into reality.  [... view Bean Machine profile ]
    Location
    Orange County, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $149/hr
    Minimal Budget
    $10,000 - $25,000
  • Let's Achieve Brilliant Results

    Let's Achieve Brilliant Results

    Done IT is a rapidly growing IT company specializing in providing comprehensive software development services for projects of any complexity.  [... view Done IT profile ]
    Location
    Orange County, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $149/hr
    Minimal Budget
    $10,000 - $25,000
  • Your Total Digital Partner!

    Your Total Digital Partner!

    Haven is an exceptional collection of seasoned professionals in the field of web design and development. With extensive industry experience and a wide range of skills and expertise, our team members bring a wealth of knowledge to every project.  [... view Haven Agency profile ]
    Location
    Irvine, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $199/hr
    Minimal Budget
    $25,000 - $50,000
  • Light up Ideas To Create Future.

    Light up Ideas To Create Future.

    Offering IT outsourcing and consulting services, we specialize in web and mobile development that harnesses the potential of AI, IoT, Big Data, and Blockchain technologies. Our focus is on tailoring cutting-edge solutions to effectively address clients' challenges and drive achievements across diverse  [... view SETA International profile ]
    Location
    Irvine, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $18/hr
    Minimal Budget
    $1,000 - $10,000
  • You Set Expectations. We Exceed Them.

    You Set Expectations. We Exceed Them.

    Bransys Group was first introduced into the marketplace in 2008 in Skopje, Macedonia, founded by Branko Trajkovski. Bransys is a product-oriented company that makes, develops and sales Hardware and Software, designed for GPS and tracking devices.  [... view Bransys profile ]
    Location
    Walnut Creek, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $50/hr
    Minimal Budget
    Under $1,000
  • Shopify design, development and marketing agency.

    Shopify design, development and marketing agency.

    Digital commerce agency Coderapper focuses on growth and has locations in the US, Canada, and India. For meaningful customer experiences, we combine data-driven design, specialized development, and targeted growth strategy.  [... view Coderapper profile ]
    Location
    Sunnyvale, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $25,000 - $50,000
  • Custom Software for Businesses

    Custom Software for Businesses

    Consider us an extension of your team and your technical co-founders, the highly qualified engineers who will create, develop, and maintain the software systems required to power your idea.  [... view Coreware Group profile ]
    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $25,000 - $50,000
  • Straight hands. Hot heads.

    Straight hands. Hot heads.

    We use the best world practices (YAGNI, KISS, DRI, and SOLID). An enterprise approach is an advantage, not an excuse. An extreme approach to development allows us to resort to the use of development-driven methodologies, in particular design, domain, bound, and testing.  [... view Atlantis profile ]
    Location
    Newport Beach, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $1,000 - $10,000
  • Software Development Made Easier.

    Software Development Made Easier.

    Craft exceptional digital solutions with a team of design, development, and strategy specialists. Everything you need is in one place.  [... view MEV profile ]
    Location
    Walnut Creek, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $45/hr
    Minimal Budget
    $50,000 & Up
  • AI-Powered Community of Expert Dev Teams

    AI-Powered Community of Expert Dev Teams

    DevTeam.Space is an AI-powered community of expert dev teams. Our mission is to help more businesses build great online products.  [... view DevTeam.Space profile ]
    Location
    Sunnyvale, California
    Number of Employees
    Under 49
    Minimal Budget
    $1,000 - $10,000
  • The Leader in No-Code Development

    The Leader in No-Code Development

    AirDev is a team of no-code development professionals who delivers custom web solutions fast, easy, and affordably.  [... view Airdev profile ]
    Location
    San Francisco, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    1 Project Listed
  • Media. Marketing. Design. Development.

    Media. Marketing. Design. Development.

    Rareview has earned a strong reputation as an outstanding agency, a highly sought-after studio, trusted consultants, and valuable partners, along with receiving numerous accolades along the way.  [... view Rareview profile ]
    Location
    San Clemente, California
    Number of Employees
    Under 49
    Portfolios Count
    1 Project Listed
  • We Build Brands And Products That Rethink Sports

    We Build Brands And Products That Rethink Sports

    Our multidisciplinary team builds high-quality products for web, iOS, and Android, with a strong focus on design, storytelling, and seamless user experiences. For clients seeking deeper collaboration, we integrate closely with your in-house team, working as a natural extension of your organization.  [... view Robin profile ]
    Location
    Los Angeles, California
    Number of Employees
    50 - 99
    Portfolios Count
    1 Project Listed

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.

Former Development Director

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.