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

211 Companies-Rankings updated: August 19, 2026

All agencies are evaluated on DesignRush for demonstrated expertise and authentic client reviews to support your decision. Certain placements are paid.

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  • Soft Does

    Custom Software That Works In The Real World

    SoftDoes builds custom software, AI, and web applications for mid-market companies that need enterprise-grade results without the overhead of an in-house team. U.S.-based leadership. Full IP ownership. No lock-in...

    Location
    San Francisco, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $75/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    1 Project Listed
    Visit WebsiteView Profile

  • VentureDive

    Engineering Intelligent & Scalable Solutions.

    VentureDive is an award-winning custom software development company dedicated to spearheading digital transformations for Fortune 500 companies across BFSI, CPG/retail, healthcare, transportation, logistics, and QSR industries through its expertise in the realms of Fintech, Data & AI, HealthTech, PropTech...

    Location
    Mountain View, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Visit WebsiteView Profile

  • Bluelight

    Empower Your Business With Custom Software, AI, & Nearshore Talent Solutions

    Bluelight is a U.S.-headquartered nearshore software development consultancy. Bluelight provides top-tier IT talent from Latin America (and onshore) who are fluent in English, work U.S. business hours, and serve as a cost-effective alternative to U.S.-based hires...

    Location
    Sacramento, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $10,000 - $25,000
    Visit WebsiteView Profile
    5.0 5.0 (7)

  • ALFATEK

    High-Level Technology for Small and Large Business.

    ALFTEK offers full-service network infrastructure, system administration, network security, software development and other managed IT services. What's more, the company also integrates robust software solutions with cloud-based SaaS, PaaS and IaaS platforms for website and social & blog design...

    Location
    Concord, California
    Number of Employees
    Under 49
    Portfolios Count
    4 Projects Listed
    Visit WebsiteView Profile

  • Anyalpha

    Software Development Company

    Anyalpha is best software development company USA that offers custom software solutions to achieve growth and scale for your business...

    Location
    Walnut Creek, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $15/hr
    Minimal Budget
    $1,000 - $10,000
    Visit WebsiteView Profile

  • Velotio Technologies

    Your Software Product Development Partner

    Velotio Technologies is an outsourced software product development partner for technology startups and enterprises. We combine innovative ideas with business expertise and the latest transformational technologies to drive business success for our customers, help them put their customers'​ needs at the core...

    Location
    San Ramon, California
    Number of Employees
    250 - 499
    Minimal Budget
    Under $1,000
    Visit WebsiteView Profile
    4.2 4.2 (98)

  • Bachoo Studio

    The Best of Two Worlds: Creative and Technology

    We offer end-to-end services, starting with concept and strategy, and continuing through design, development, QA, DevOps, and support. We believe in co-creation, enabling our clients to bring their own ownership and knowledge of their business and brand while we contribute our rich expertise to the table. Our...

    Location
    El Segundo, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $10,000 - $25,000
    Visit WebsiteView Profile

  • TechMatter

    Health Tech and Managed IT Services Company

    TechMatter is a leading global provider of technology and healthcare solutions headquartered in Glendale, California. The company specializes in enterprise software development, automation, and revenue cycle management, empowering organizations to streamline operations and achieve sustainable growth. With a...

    Location
    Glendale, California
    Number of Employees
    500 - 999
    Average Hourly Rate
    $100/hr
    Visit WebsiteView Profile
    4.5 4.5 (40)

  • Blankfactor

    From Application Development to Large-Scale Database Migrations – We’re Mission Ready.

    Equipped with expert, full-stack, agile teams, we help agencies, corporations and start-ups innovate and scale. And we do it on your terms, be it on the front lines or as a behind-the-scenes partner...

    Location
    San Francisco, California
    Number of Employees
    Under 49
    Visit WebsiteView Profile

  • AlphaBOLD

    Make the Right Choice.

    Top ranking Microsoft Dynamics Partner providing consultation for Dynamics 365 CRM, NetSuite, Dynamics 365 Business Central, Salesforce, SharePoint, BI, Custom Software Development, Web app development, Azure with other Microsoft Solutions. AlphaBOLD based in San Diego, USA. Contact Us Now!...

    Location
    Carlsbad, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    1 Project Listed
    Visit WebsiteView Profile
    3.0 3.0 (4)

  • AltexSoft

    Technology & Solution Consulting company

    We have experience in following fields: HR Tech, Software Product Development, Machine Learning, Biotech, greentech, UX/UI Design...

    Location
    Foster City, California
    Number of Employees
    100 - 249
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    1 Project Listed
    Visit WebsiteView Profile

  • ITColark Consulting

    Building Smart Enterprise Solutions For Growing Businesses.

    ITColark Consulting delivers customized enterprise software and IT solutions that help businesses streamline operations, scale efficiently, and achieve digital growth...

    Location
    California City, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $11/hr
    Minimal Budget
    $10,000 - $25,000
    Visit WebsiteView Profile

  • Punch Group

    Crafting Digital Experiences From Idea to Launch

    Punch is a full-service creative agency. We research, build, market, and grow companies of all sizes with our engineering, design, and marketing services...

    Location
    San Francisco, California
    Number of Employees
    100 - 249
    Visit WebsiteView Profile
    5.0 5.0 (1)

  • IMEA Systems

    We Build Products

    IMEA systems is a partner of choice for many world-leading companies and those who care for service quality and trustworthiness. Our services vary, including all your business implementation processes, i.e. development, quality assurance, design, marketing and SEO...

    Location
    Glendale, California
    Number of Employees
    100 - 249
    Visit WebsiteView Profile

  • Attractor Software

    Developing and integrating eCommerce apps

    Since 2012, Attractor Software LLC has offered Custom Software Development as an outsourcing service for projects of varying complexity and size...

    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $10,000 - $25,000
    Visit WebsiteView Profile
    4.6 4.6 (8)

  • Innominds

    Powering Change through Digital Transformation.

    As a leading digital transformation and product engineering company, we offer co-creation services utilizing digital technologies such as IoT, blockchain, AI and more. Experience amplified productivity, reduced time-to-market and significant cost savings while maintaining the highest standard of quality...

    Location
    San Jose, California
    Number of Employees
    500 - 999
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $10,000 - $25,000
    Visit WebsiteView Profile
    4.0 4.0 (14)

  • Appinventors Inc

    Digital Transformation Agency.

    Appinventors stands as a prominent Digital Transformation Agency, enabling businesses to prosper within the contemporary digital landscape. At Appinventors, we pride ourselves on delivering exceptional customer support and assistance. Whether you're facing technical challenges or seeking guidance on your...

    Location
    Los Angeles, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000
    Visit WebsiteView Profile

  • Forge Studio

    Senior Product Designers Embedded in Your Team — Design Systems, Staff Augmentation, and Zero-to-One

    Forge Studio places senior product designers (L4-L6 caliber) from Coinbase, Roblox, and Instacart directly into your team. Embedded design teams, enterprise design systems, and zero-to-one product design. $9.5M+ in engagements since 2017...

    Location
    San Francisco, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $200/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    2 Projects Listed
    Visit WebsiteView Profile

  • Zazmic

    Lightning-Fast AI, Cloud & Cybersecurity Solutions

    Zazmic has been at the forefront of AI/ML and software development innovation for over a decade. Today, we continue to lead the charge as the Google Cloud Premier partner and a top provider of Gen AI, cybersecurity, and cloud services. Design, architecture, top-tier engineering we have it all...

    Location
    San Francisco, California
    Number of Employees
    500 - 999
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    1 Project Listed
    Visit WebsiteView Profile
    3.7 3.7 (6)

  • iQlance Solutions Canada

    Canadas Trusted Partner

    iQlance Solutions Canada is a global technology service provider specializing in delivering advanced digital products tailored to modern business needs. The company focuses on building scalable, secure, and high-performance solutions, helping organizations turn their ideas into successful digital platforms...

    Location
    Ontario, California
    Number of Employees
    50 - 99
    Minimal Budget
    $10,000 - $25,000
    Visit WebsiteView Profile

  • Rocket Systems

    Rocket your business forward with our expertise.

    Rocket Systems is focused on producing high-quality code, we take extra precautions to ensure that our technological approach is congruent with the ambitions of our customers. Additionally, we strive to create code bases that are both scalable and easily maintained. In order to construct a digital product...

    Location
    Sacramento, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000
    Visit WebsiteView 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...

    Location
    Campbell, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $450/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    3 Projects Listed
    Visit WebsiteView Profile

  • Paradigm Solutions

    AI-native Engineering. Enterprise-grade Results

    Paradigm provides custom low-code software solutions. Our commitment is to empower organizations with the tools they need to streamline processes, automate tasks, and scale operations efficiently. Through a fusion of expert development and a deep understanding of our clients' unique challenges, we aim to be...

    Location
    Temecula, California
    Number of Employees
    Under 49
    Minimal Budget
    $1,000 - $10,000
    Visit WebsiteView Profile
    5.0 5.0 (1)

  • Nova Era Agency

    Building the new era of digital growth

    Nova Era is a digital solutions agency built to merge creativity with innovation, offering web and app design, development, video production, automation, and customized AI tools. The focus is always on building smarter systems that help businesses work seamlessly and communicate with impact.What defines the...

    Location
    San Francisco, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $149/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    2 Projects Listed
    Visit WebsiteView Profile
    5.0 5.0 (19)

  • Programize LLC

    Enterprise-grade Solutions

    We work with world-class startups, businesses, and institutions as part of an exceptional team of software engineers and technology wizards...

    Location
    Riverside, California
    Number of Employees
    100 - 249
    Visit WebsiteView Profile

  • OutsourcingDev

    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...

    Location
    San Francisco, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $55/hr
    Minimal Budget
    $10,000 - $25,000
    Visit WebsiteView Profile

  • Jaxel

    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...

    Location
    Pleasanton, California
    Number of Employees
    Under 49
    Minimal Budget
    $10,000 - $25,000
    Visit WebsiteView Profile

  • Tech.us, Inc

    Build Better Software.

    Tech.us is an AI software solutions company that provides AI development, mobile applications, cloud consulting, and IT services. We focus on creating secure, scalable, and innovative technologies that support businesses in their digital journey...

    Location
    San Jose, California
    Number of Employees
    100 - 249
    Minimal Budget
    $10,000 - $25,000
    Visit WebsiteView Profile

  • EltexSoft

    Senior Web, Mobile & AI Engineering

    Boutique studio of senior engineers building web, mobile, and AI products since 2015. We embed as a long-term extension of your team and ship code that lasts. 5.0 on Clutch, top 1% on Upwork...

    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $25,000 - $50,000
    Visit WebsiteView Profile
    5.0 5.0 (3)

  • Acquaint SoftTech

    Think Partner, Not Agency

    Acquaint Softtech is an Official Laravel Partner with 15+ years of experience in software development. We specialize in Laravel solutions and excel in IT staff augmentation, remote development teams and outsourcing to deliver scalable, best results...

    Location
    Highland, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $20/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    6 Projects Listed
    Visit WebsiteView Profile
    4.4 4.4 (110)

  • Launch Site

    Beautiful Design For The Bold

    Were a small team of artists who happen to love software development. Everything we do is rooted in our passion for elegant design, both internally and externally. For us, theres no better feeling than knowing we help our customers put their best foot forward with great online experiences...

    Location
    San Marcos, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $120/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    1 Project Listed
    Visit WebsiteView Profile

  • Indium

    Make Technology Work

    Indium is an AI-driven digital engineering company that helps enterprises build, scale, and innovate with cutting-edge technology. We specialize in custom solutions, ensuring every engagement is tailored to business needs with a relentless customer-first approach...

    Location
    Cupertino, California
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $50/hr
    Visit WebsiteView Profile
    5.0 5.0 (1)

  • Zymr

    Cloud Native Software Development

    ZYMR offers cutting-edge cloud-based services for Healthcare, HIPAA, Biotech, etc... We are a leading cloud technology services provider in Silicon Valley, USA. Get in touch for cloud-based solutions today...

    Location
    San Jose, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000
    Visit WebsiteView Profile
    5.0 5.0 (6)

  • SM Innovations

    Industry-Specific Expertise Meets Salesforce Excellence

    Our engineering and design teams, which are made up of some of the brightest and most creative young people in the world and have backgrounds and degrees from the best technology and management consulting firms, are the foundation of our success...

    Location
    Irvine, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $10,000 - $25,000
    Visit WebsiteView Profile

  • Railsware

    Railsware - A software development agency

    We're a software development agency that builds products that scale. Our engineering-first culture and product-minded approach have powered success stories like Calendlythe scheduling platform that revolutionized meetings for millions...

    Location
    West Hollywood, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $149/hr
    Minimal Budget
    $50,000 & Up
    Visit WebsiteView Profile
    4.6 4.6 (20)

  • Bay Area Coders

    Strategy, design, engineering, and AI

    Bay Area Coders is a San Francisco-based product and engineering studio working with venture-backed startups and growth-stage companies since 2016. We combine strategy, design, engineering, and AI to help teams ship real products and modernize existing ones...

    Location
    Roseville, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $1,000 - $10,000
    Visit WebsiteView Profile

  • Impekable

    We Help Enterprise Companies Achieve Their Digital Dreams.

    Impekable is an award-winning, worldwide digital product agency specializing in UX/UI Design, Mobile App Development & Web Development. We've created award-winning web and mobile user experiences for more than 250 clients, and over 600 projects, globally. We are honored to be recognized as a leading web and...

    Location
    San Jose, California
    Number of Employees
    Under 49
    Visit WebsiteView Profile

  • Beehive Software

    Reimagining Software Development

    Beehive is a new production model for software development (the world's first we should add) that fuses AI precision with human ingenuity. A model of collective intelligence that breaks projects into microtasks, routing them to global experts, and delivering production-ready, high quality, code faster than...

    Location
    San Jose, California
    Number of Employees
    100 - 249
    Minimal Budget
    $10,000 - $25,000
    Visit WebsiteView Profile
    5.0 5.0 (4)

  • Codesparrk

    Most Scalable Custom Software Development Company

    CodeSparrk has been recognized as the top digital marketing agency, ranked as best digital marketing agency in research, and is a proud winner of awards in 2022...

    Location
    Pasadena, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $12/hr
    Minimal Budget
    $1,000 - $10,000
    Visit WebsiteView Profile

  • Povio

    Design and Development Done Right!

    Povio is a company that is based in San Francisco and specializes in designing and developing digital products that make a positive impact. With over 1000 successful projects delivered and a team of over 200 skilled professionals, we have collaborated with multinational companies like VW, unicorns such as...

    Location
    San Francisco, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $70/hr
    Minimal Budget
    $1,000 - $10,000
    Visit WebsiteView Profile
    3.0 3.0 (1)

  • KB Solutions

    Your Vision, Our Expertise

    KB Solutions delivers personalized digital marketing and branding services to help businesses stand out and thrive in competitive markets...

    Location
    Pasadena, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $10,000 - $25,000
    Visit WebsiteView Profile

  • WebVello

    Design. Develop. Dominate.

    A modern digital studio building high-performance websites, SEO systems, and growth platforms for brands that want real results not just visuals...

    Location
    Roseville, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $55/hr
    Minimal Budget
    $1,000 - $10,000
    Visit WebsiteView Profile
    5.0 5.0 (14)

  • Blue Trail Software

    More Than Code We Build Trust Through Craft & Commitment

    Engineered with integrity. Backed by mentorship. Delivered with care. BTS transforms ideas into scalable, secure, and impactful digital products that deliver long-term value...

    Location
    San Francisco, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $55/hr
    Minimal Budget
    $50,000 & Up
    Visit WebsiteView Profile

  • AlgoRepublic

    Our expertise makes a positive impact to your business

    AlgoRepublic offers comprehensive business automation, product development, and software/web development services to clients globally. Our expertise ensures innovative and efficient solutions tailored to meet the diverse needs of businesses worldwide...

    Location
    Los Angeles, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $30/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    1 Project Listed
    Visit WebsiteView Profile
    4.3 4.3 (1)
    4.8 4.8 (18)

  • Dreamer Technoland

    Full Cycle Software & Mobile App Development Company.

    Dreamer Technoland is a web development, mobile app design and development company building reliable solutions for businesses and startups...

    Location
    Alameda, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    3 Projects Listed
    Visit WebsiteView Profile
    4.4 4.4 (28)

  • Staydify Systems

    Empowering Your Business Growth With Precision

    Staydify Growth Systems is a division of the UK-based HiringBooster Group, focused on driving technology-enabled business growth. The company specializes in delivering advanced custom software development and precision IT staffing services, leveraging its global footprint across the UK, USA, India, and other...

    Location
    San Francisco, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $10/hr
    Minimal Budget
    Under $1,000
    Visit WebsiteView Profile

  • AJProTech

    Transforming Your Ideas Into Successful Products.

    AJProTech is a leading IoT product development studio. With a dedicated team of expert engineers covering electrical, mechanical, software, and supply chain domains, the agency offers full-service support from concept to mass production, transforming clients' ideas into successful products. From conducting...

    Location
    Calabasas, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $149/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    1 Project Listed
    Visit WebsiteView Profile
    5.0 5.0 (4)

  • Mindera Software Craft

    AI That Transforms Businesses

    Mindera Software Craft specializes in crafting robust IoT solutions through high-performance, scalable software systems. From product development and performance testing to technology consultancy, we provide end-to-end services tailored to your needs...

    Location
    Los Angeles, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $50,000 & Up
    Visit WebsiteView Profile

  • Prime Web Coders

    Grow Your Business Online

    Prime Web Coders is a digital solutions agency specializing in web design, development, digital marketing, and business growth services. The company helps businesses build strong online presences through custom websites, e-commerce platforms, mobile applications, and performance-driven marketing strategies...

    Location
    Los Angeles, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $10,000 - $25,000
    Visit WebsiteView Profile

  • Esclatech

    Your Tech Growth Partner

    Esclatech is a leading software development and digital transformation company specializing in Mobile App Development, Web App Development, SaaS Solutions, and AI Automation Services...

    Location
    California City, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $1,000 - $10,000
    Visit WebsiteView Profile
    2.3 2.3 (1)

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