Our expert analysts researched and ranked the leading California iPhone app development companies that build customer-centric applications that engage and convert users into paying customers. Use our practical tool to filter listings by budget, size and reviews and select the best partner for your business needs.

Best iOS App Development Agency In California

58 Companies - Rankings updated: August 19, 2026

Every agency featured on DesignRush is vetted for expertise and client satisfaction to support your decision-making. Some listings may be sponsored.

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  • 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 Website View Profile

  • Moveo Apps

    A Full Stack Mobile App and Web Development Agency

    Moveo believes mobile apps are disruptive pieces of technology that have the capacity to make your business more profitable. We see apps as growth accelerators that help leverage hidden business potential to generate more revenue and increase profits...

    Location
    San Diego, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
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  • 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
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  • RSunBeat Software

    Your Vision, Our Innovation Together, We Build the Future.

    RSunBeat Software is a globally trusted leader in mobile app development, serving businesses in the USA, UK, Australia, Italy, Dubai, Brazil, and more. We design innovative, high-quality apps that boost growth, elevate user experiences, and turn ideas into powerful digital solutions...

    Location
    California City, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $15/hr
    Minimal Budget
    $1,000 - $10,000
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  • Techjays

    The Best Way To Build Your Software.

    Our focus is on providing businesses with the tools they need to reach their maximum potential through the use of our cutting-edge software solutions. Launch your product to market 2x faster with Techjay's strong business domain experience, technical expertise, extensive knowledge of the latest industry...

    Location
    Menlo Park, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $28/hr
    Minimal Budget
    $10,000 - $25,000
    Visit Website View Profile
    5.0 5.0 (8)

  • Umang Software Technologies

    UMANG means Enthusiasm; Enthusiasm is what drives the mankind!

    Umang has been working with some of the elite organization across the globe to develop and maintain their existing legacy applications. They are experts in developing custom software/Mobile/Web applications. Umang has expertise in Delphi, Java, PHP, Python, DotNet and 20+ other technologies and has domain...

    Location
    San Jose, California
    Number of Employees
    Under 49
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  • Persistent

    See Beyond, Rise Above.

    Persistent Systems, a renowned global leader in software product development and technology services. Delve into our innovative offerings to stay ahead in the ever-evolving landscape of technology...

    Location
    Santa Clara, California
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $50,000 & Up
    Visit Website View Profile
    4.6 4.6 (730)

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