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

83 Companies - Rankings updated: August 19, 2026

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

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  • Radixweb

    Your Software Development Partner Where AI Innovation Meets Engineering Excellence

    Founded in 2000, Radixweb is a global leader in AI-driven software, product engineering & digital transformation. With 25+ yrs, 650+ experts & 5,500+ projects for 3,000+ clients in 25+ countries, we deliver cloud & AI solutions across industries, driving innovation, agility & growth...

    Location
    Artesia, California
    Number of Employees
    500 - 999
    Average Hourly Rate
    $25/hr
    Portfolios Count
    24 Projects Listed
    Visit Website View Profile
    4.2 4.2 (385)

  • Surekha Technologies

    Caring for Client's Success

    Surekha Technologies, is a leading Liferay, Odoo, offshore development consulting services provider company from Ahmedabad, India...

    Location
    Laguna Beach, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Portfolios Count
    3 Projects Listed
    Visit Website View Profile

  • Ambsan Digital

    Building the Future, Code At A Time

    Ambsan Digital is a full stack company specializing in high-performance web and mobile app development. We transform ideas into scalable digital products, offering end-to-end services from UI/UX design and custom web platforms to native and cross-platform mobile applications. Our expert developers focus on...

    Location
    California City, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    1 Project Listed
    Visit Website View Profile
    4.1 4.1 (1)

  • Appstem

    Appstem Designs and Develops Custom Software To Help Our Clients Solve Complex Business Problems.

    Appstem is a full-service mobile strategy, design and development agency, Based in San Francisco, Appstem has delivered over 200 apps with a team of experts specializing in strategy, QA, development and UI/UX design...

    Location
    San Francisco, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    5 Projects Listed
    Visit Website View Profile
    4.6 4.6 (8)

  • Qualimatrix Technologies Pvt Ltd

    QualiMatrix Technologies: Always believe in Quality. We are ISO certified - 9001, 27001

    One of the top Cyber Security providers, Web Development Services, App Development Services, UI/UX Services, and Software Testing Services...

    Location
    Bakersfield, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $13/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    1 Project Listed
    Visit Website View Profile
    4.7 4.7 (4)
    5.0 5.0 (29)

  • Appventurez Mobitech

    AI-First Engineering | Agentic AI | Product Engineering | Enterprise Software | Digital Transformati

    Appventurez is a global AI and digital transformation company specializing in custom software, mobile app, web, and enterprise application development. We build scalable technology solutions that help businesses innovate, automate, and grow...

    Location
    San Jose, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    8 Projects Listed
    Visit Website View Profile
    4.2 4.2 (1)

  • Horus

    Top Global Mobile Development Studio

    We are Horus Studio, a Global Mobile Development Studio passionate about creating cutting-edge apps using .NET MAUI, Flutter and Uno Platform...

    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    9 Projects Listed
    Visit Website View Profile

  • Perimattic

    Your Digital Partner for Project Success.

    Perimattic is a technology partner specializing in AI development, software development, cloud solutions, DevOps, MLOps, and enterprise technology services. The company helps startups, growing businesses, and enterprises build secure, scalable, and high-performance digital solutions...

    Location
    San Francisco, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Visit Website View Profile
    4.3 4.3 (1)

  • ThinkSys

    Deploy Dream Applications From Scratch

    Our team of over 200 IT experts and engineers harness the power of contemporary technologies, advanced frameworks, and innovative methodologies to deliver unmatched and top-notch outsourced services from India...

    Location
    Sunnyvale, California
    Number of Employees
    100 - 249
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    4 Projects Listed
    Visit Website View Profile
    1.0 1.0 (1)

  • AppCrops

    Turning Ideas Into Interactive Apps

    AppCrops is a next-gen technology partner delivering end-to-end digital solutions for startups and enterprises. From interactive user-friendly iOS, Android or Custom Mobile applications to Web apps, ERP systems and custom software, we help transform ideas into high-performing digital products...

    Location
    Los Angeles, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    4 Projects Listed
    Visit Website View Profile
    5.0 5.0 (3)

  • 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...

    Location
    San Diego, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $75/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    1 Project Listed
    Visit Website View Profile

  • In Time Tec South Korea

    Best award-winning software development company in South Korea.

    Time Tec South Korea is a top-rated, multi-award-winning software development company providing a full suite of services and solutions like mobile application development, software development, Microsoft Dynamics 365 development, web development, ServiceNow consulting, and cybersecurity consulting to small...

    Location
    Roseville, California
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    Visit Website View Profile

  • QLO Agency

    Strategies, Branding and Digital Products for Companies Who Are Ready for Changes.

    QLO Agency is a Los Angeles based design and technology studio founded in 2024. The firm delivers branding, UX/UI, web and app design, motion graphics, packaging, and 3D animation. With a lean team of under 50, QLO specializes in crafting bold digital experiences for startups, consumer brands, and global...

    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $110/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    3 Projects Listed
    Visit Website View Profile

  • Ozodeck Inc.

    We Design Modern Creative Websites

    We provide excellent solution with modern and trendy design for Website and Mobile app. Give a touch of modern solution to your business...

    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $60/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    1 Project Listed
    Visit Website View Profile
    5.0 5.0 (4)

  • Infinite Digital Group

    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...

    Location
    Concord, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $120/hr
    Minimal Budget
    $1,000 - $10,000
    Visit Website View Profile
    5.0 5.0 (10)

  • Rivi, Inc.

    Rivi - AI Tools For Travel Companies

    Rivi specializes in developing AI and technology solutions for forward-thinking companies. We empower businesses to innovate and stay ahead of the curve...

    Location
    San Francisco, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $45/hr
    Visit Website View Profile

  • Kritikal Solution

    Translating Ideas & Research to Market

    KritiKal Solutions is a technology design house and holds 22+ years of experience in AI, Computer Vision, Software Applications, Cloud and Mobile-based Solutions, Embedded Systems, Generative AI and Large Language Models. We specialize in R&D, product engineering, and innovation services...

    Location
    Los Angeles, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    4 Projects Listed
    Visit Website View Profile
    5.0 5.0 (2)

  • WebeXcellence

    Transform Your Business Using Our Digital Solutions!

    We are a web and AI development agency helping startups and businesses build scalable digital products. Our team specializes in modern web applications, AI integrations, automation systems, and SaaS platforms. From idea to deployment, we focus on creating fast, secure, and user-friendly solutions that help...

    Location
    Tracy, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $20/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    3 Projects Listed
    Visit Website View Profile
    4.3 4.3 (1)
    5.0 5.0 (9)

  • Luvina Software

    Precision Discipline Delivery

    Luvina is a well-known software outsourcing business that specializes in providing clients all around the world with excellent IT solutions. With a dedicated team of more than 750 experts, Luvina provides comprehensive software development services that are customized to each client's specific needs. Luvina...

    Location
    San Jose, California
    Number of Employees
    500 - 999
    Average Hourly Rate
    $25/hr
    Visit Website View Profile
    4.7 4.7 (61)

  • AQe Digital

    GO-TO Digital Transformation Partner

    AQe Digital specializes in enterprise software engineering and digital transformation. With 25+ years of experience, we deliver custom development, cloud-native ERP, AI/ML, RPA, IoT, UX/UI, and integrations that modernize systems and streamline operations...

    Location
    Los Angeles, California
    Number of Employees
    500 - 999
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    1 Project Listed
    Visit Website View Profile
    4.3 4.3 (1)

  • 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 Website View Profile
    4.4 4.4 (110)

  • Mobile Application Developers

    Professional Mobile App Development Services

    Our expert, award-winning staff selects the products we cover and rigorously researches and tests our top picks. If you buy through our links, we may get a commission...

    Location
    Los Angeles, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $55/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    1 Project Listed
    Visit Website View 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 Website View Profile

  • Phoenix Afterglow

    Your Full Digital Development Experience.

    Phoenix Afterglow is a premier multimedia company specializing in web development, app development, online marketing, and cybersecurity. They are dedicated to upholding the highest standards of performance, integrity, and ethics to ensure client satisfaction and achieve a lasting sense of fulfillment for all...

    Location
    Irvine, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $1,000 - $10,000
    Visit Website View Profile
    5.0 5.0 (7)

  • Argusoft

    Your Extended Engineering Team

    Argusoft is a trusted software solutions design consultancy that provides end-to-end, enterprise-class turnkey solutions. Our team of Argonauts are trained to think design at every step, architecting, designing, and coding with the business goals and objectives of our clients in mind...

    Location
    Newark, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $25,000 - $50,000
    Visit Website View Profile

  • Autobyte Solution

    Your Go-To Web And Marketing Experts

    Autobyte Solution is a full-service digital marketing and web design agency that helps businesses across the United States build stronger online brands and drive measurable business growth. The company specializes in web design and development, branding, SEO, PPC advertising, content marketing, and social...

    Location
    Sacramento, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    Minimal Budget
    Under $1,000
    Visit Website View Profile

  • Allusive Digital

    Proven Excellence Through Custom Web Design and Development Services.

    Allusive Digital is a creative and marketing agency that helps businesses grow through branding, web design, content development, and digital marketing. The agency blends thoughtful strategy with polished creative execution to help clients increase visibility, strengthen their identity, and connect with their...

    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Visit Website View Profile
    5.0 5.0 (5)

  • 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 Website View Profile

  • Briskstar Technologies

    Trusted by Global Enterprises

    At Briskstar Technologies, we have 6+years of experience in core development which makes valuable additions to help clients to grow their business. We have an experienced team of developers based out in India who can assist clients remotely as per their time zone with a weekly reporting structure...

    Location
    Torrance, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $20/hr
    Minimal Budget
    $1,000 - $10,000
    Visit Website View Profile
    4.8 4.8 (43)

  • SoftGrid Computers

    Innovate, Create, Excel.

    SoftGrid Computers is a prominent custom software development company that excels in blending the latest technologies with well-organized creative work. With a strong focus on understanding client needs and delivering optimal solutions, we strive to be a reliable partner that offers great value for money. Our...

    Location
    Santa Monica, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $1,000 - $10,000
    Visit Website View Profile

  • H.R Software Solutions Pvt. Ltd.

    Innovate, Code, Elevate Transforming Ideas into Reality.

    H.R. Software Solutions Pvt. Ltd. is a leading IT company offering cutting-edge software development, web solutions, and digital marketing services. We specialize in ERP, CRM, mobile app development, and AI-driven solutions for businesses of all sizes. With a customer-centric approach, we deliver innovative...

    Location
    Ontario, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $10,000 - $25,000
    Visit Website View Profile

  • TST Technology

    Your Trusted IT Consulting Company for Business Success.

    TST Technology is an IT consulting company that offers services such as UI/UX design, web and mobile app development, software development, and SaaS product development. They have completed over 40 projects across 15+ industries...

    Location
    Los Angeles, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $1,000 - $10,000
    Visit Website View Profile
    5.0 5.0 (22)

  • Hilton Technologies

    Driving Digital Growth Across Industries

    Hilton Software Technologies is an IT solutions company based in Hyderabad, delivering customized software, web, and digital services since 2013. The company helps businesses of all sizes accelerate growth through innovative technology, reliable support, and tailored digital solutions...

    Location
    Fremont, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $1,000 - $10,000
    Visit Website View Profile
    4.3 4.3 (10)

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