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Here are California's Top iPhone App Development Companies & Developers

  • Altumind enables its clients to achieve digital transformation with tangible outcomes. To do so we rely on a combination of: Expertise in emerging technologies Experience in both traditional and modern software engineering paradigms Knowledge of various business domains (Finance, HR, Supply Chain, IT, Compliance) Alliances with industry-leading platforms Proven methodologies and accelerators/tools for strategizing, prioritizing, ... read Altumind reviews & insights

    $25 - $49/hr
    50 - 249
    2021
    San Diego, California
  • PROS has over 20 years of experience in software enterprise technology solutions including digital transformation, cybersecurity, internet of things (IoT), 5G and more. We are experts in digital technologies like web applications, data integration, software-as-a-service (SAAS), data-driven, marketing automation, artificial intelligence (AI), data warehousing, custom software integrations via (API), enterprise (CRM) and (ERP), user interface ... read PROS Global Inc reviews & insights

    < $25/hr
    10 - 49
    1996
    San Diego, California
  • The Miller Group is a creatively led, strategically driven digital advertising and marketing agency constantly seeking and celebrating new disciplines and innovative ways of thinking to meet our clients’ needs. We believe that advertising is about connection: every brand has a story, and it's our job to tell those stories in a way that is ... read The Miller Group reviews & insights

    NA
    10 - 49
    1990
    Pacific Palisades, California
  • A digital product & design agency working with the 3rd web, innovation, brand creation and creative technology. Signature Creative is a premiere digital product and design agency in Los Angeles California. established in 2004 by award winning creative, John Gheur, to provide creative technology solutions to Fortune 500 companies, startups and international brands. Specialties include ... read Signature Creative reviews & insights

    $150 - $199/hr
    10 - 49
    2005
    Los Angeles, California
  • At App Wave Inc, we ignite brilliance. Our team thrives on pushing boundaries and delivering solutions that transcend the ordinary. With a relentless focus on innovation and scalability, we craft experiences that propel our clients to new heights of success.With a track record of serving over 750+ clients worldwide, our reputation speaks volumes. Our commitment ... read App Wave reviews & insights

    $25 - $49/hr
    2 - 9
    San Francisco, California
  • Our Salesforce consulting services are designed to help businesses unlock the full potential of the Salesforce platform. We work closely with our clients to understand their unique requirements and develop customized solutions that align with their business goals. Our consulting services include: Business Analysis and Strategy: We conduct a thorough analysis of your business processes ... read Folio3 Salesforce reviews & insights

    $100 - $149/hr
    250 - 999
    Pleasanton, California
  • Global IQ Services is a full-spectrum software development company delivering innovative, secure, and scalable digital solutions. From idea to execution, we build intelligent products that power business transformation across industries. With a strong focus on Agentic AI, LLM customization, and Salesforce integration, we combine advanced technologies with deep domain expertise to create solutions that are ... read Global IQ Services reviews & insights

    $25 - $49/hr
    10 - 49
    2024
    San Mateo, California
  • DevNexus Solutions is a Global IT Company committed to delivering digital solutions that empower your business to thrive in this modern tech era. With a focus on quality, scalability, and performance, we specialise in customer software development, mobile app development, web development, blockchain development, and other integrations. Visit our website to learn more. 

    $25 - $49/hr
    10 - 49
    2025
    California City, California
  • H&L Consulting, established in 2011, is a premier ITO firm based in the US with a dynamic branch in Hanoi, Vietnam. Our seasoned experts provide customized solutions to global clients, blending American culture understanding and legal expertise. With fluent English communication and cost-effective services, we ensure seamless collaboration across continents. From development support to exceptional ... read H&L Consulting reviews & insights

    NA
    50 - 249
    2010
    San Diego, California
  • At Webiz Digital, we transform your digital vision into reality with creative and results-driven solutions. As a full-service agency, we specialize in logo design, branding, business cards, web design & software development, e-commerce stores, and mobile apps. Our digital marketing services—SEO, SES, PPC, Google Ads, GMB, and SMM—empower businesses to thrive in a competitive landscape. ... read Webiz Digital reviews & insights

    $100 - $149/hr
    50 - 249
    2010
    San Diego, California
  • Pro Lead Soft is the pioneer in development apps. Contact us now to get quote of average cost of app development. 

    < $25/hr
    50 - 249
    2012
    Daly City, California
  • Acumen Velocity is a full-service web development, application development, SEO, and Internet marketing company. We deliver robust software solutions that excel in highly-challenging environments and give our clients an edge over the competition. Driven by our commitment to excellence and customer satisfaction, we focus on leveraging the best of technology to boost your online presence ... read Acumen Velocity reviews & insights

    NA
    10 - 49
    Santa Ana, California
  • Sileria provides creative software solutions for the mobile, graphics, games, web and entertainment industry. The company specializes in mobile and graphics software while also developing desktop, web & enterprise applications throughout North America, Europe and Asia. The team consists of highly qualified professionals skilled in the latest cutting edge technologies.

    < $25/hr
    10 - 49
    2001
    Los Angeles, California
  • We build websites across a wide variety of web and mobile platforms, that not only look great but function great. Our sites are google friendly, and ready for any advertising or SEO campaign. WDT is a full service web designer and developer. Our cutting edge design combined with search engine friendly coding and the latest in web ... read WDT reviews & insights

    $25 - $49/hr
    2 - 9
    2017
    Thousand Oaks, California
  • We are a software development studio specializing in building and supporting bespoke web, mobile, and AI applications using modern methods, tools, and workflows. We act like an owner and work closely with our customers to act like an in-house software development department, ready to build products with all of the resources that a product team ... read Materalize Labs reviews & insights

    $150 - $199/hr
    10 - 49
    2019
    Los Angeles, California
  • TRG Digital is a data-first marketing and innovation firm that offers complete digital solutions from digital business growth strategies to custom software development and integration. We are a team of technologists, scientists, creative marketers and entrepreneurs who have come together to provide a full-service approach to digital, with capabilities in strategy, technology, marketing, user experiences, data science, cloud ... read TRG Digital reviews & insights

    $100 - $149/hr
    10 - 49
    2018
    San Jose, California
  • We are a global, independent marketing agency comprised of strategists, creatives, marketers, data scientists and engineers from around the world driven by one common purpose — create groundbreaking work that helps brands drive business growth. Our process is agile and iterative delivering one-to-one consumer engagement at scale. We work in small teams of experts solving ... read Mindgruve reviews & insights

    NA
    250 - 999
    2001
    Santa Monica, California
  • Our key to success is based in our engineering and design teams, fielding some of the most talented young developers and creative staff in the world, with experience and degrees from top technology and management consultant firms. Every project we undertake is staffed by a dedicated, vertically integrated team specialized to meet the unique demands ... read SM Innovations reviews & insights

    NA
    10 - 49
    2018
    Santa Monica, California
  • Web Design Podium is a professional digital marketing agency located in the United States offering A to Z digital services to it's clients. Our services include Social Media Marketing, Search Engine Optimization, Web Design And Development, App Design And Development, Video Animation, Logo Designing, Stationary Designing, Branding, Content Writing, Copy Writing and any other digital ... read Web Design Podium reviews & insights

    NA
    50 - 249
    2020
    Pasadena, California
  • A one-stop shop for all your digital branding needs is Web Design Centric. A corporation has several teams that are hugely successful in their own fields, such as those who develop mobile apps, online stores, create logos, create websites, design stationery, etc.

    NA
    10 - 49
    2015
    Los Angeles, California
  • Webnortics is a professional web design agency driven by an unwavering commitment to helping you achieve your brand awareness goals. We are passionate about empowering your business to become a leader in its industry. With a team of dedicated experts, we blend creativity and cutting-edge technology to craft exceptional digital experiences. Our mission is to ... read Webnortics reviews & insights

    NA
    50 - 249
    2015
    Orange County, California
  • Our work can be summarized in four words: You imagine, we build. Our clients sometimes consider us extensions of their organizations. We sometimes integrate with their team and work alongside them during day-to-day operations. Occasionally, we deliver a well-scoped project and that’s it. When it comes to engaging with our clients, we are pretty flexible. ... read galliot reviews & insights

    < $25/hr
    10 - 49
    2018
    San Francisco, California
  •   Mushroom Solutions, a specialized provider in the fields of Automation, IoT, and AR & VR technologies. We offer a comprehensive range of solutions, including Enterprise, Interactive, Cross-Industry Solutions, and Professional Services. At the heart of our mission are core objectives focused on optimizing processes, driving automation, ensuring cost-efficiency, and enhancing the overall customer experience. ... read Mushroom Solutions Inc reviews & insights

    NA
    10 - 49
    San Jose, California
  • We’re a digital agency elevating projects from ideation to implementation.  Big Drum is a premier design and development agency, distinguished by its highly diverse and creative team. We specialize in transforming ideas into scalable solutions through the development of web and mobile cloud-based applications. Our Values. Leadership We stand apart from larger agencies by having ... read Big Drum Digital reviews & insights

    $100 - $149/hr
    10 - 49
    2018
    Chico, California
  • At Cygnus Designs, we specialize in transforming your digital presence with innovative solutions. Our expert team combines creativity and strategy to deliver exceptional web design, development, and digital marketing services.

    $25 - $49/hr
    10 - 49
    2022
    Santa Monica, California
  • Hello Digital Agency is your trusted partner in delivering innovative and high-quality digital solutions. With years of expertise, we empower businesses to grow through customized web design, app development, graphic design, and digital marketing strategies. Our mission is to help you stand out in a competitive market by offering services tailored to your unique needs.

    NA
    2 - 9
    San Marcos, California
  • X-Out Studio is a team of passionate experts dedicated to delivering exceptional digital solutions. With over 30 skilled professionals and more than 50 completed projects, we excel in bringing innovative ideas to life. From websites and applications to AI and blockchain, we tackle projects of any complexity, combining creativity with cutting-edge technology. Our commitment to ... read X-Out Studio reviews & insights

    $25 - $49/hr
    10 - 49
    2021
    Mountain View, California
  • At Query Minds, we empower businesses with intelligent IT solutions that drive efficiency, security, and growth. Our expertise spans across workflow automation, cloud solutions, cybersecurity, data analytics, and IT infrastructure management. We specialize in: ✅ Workflow Automation – Streamlining business processes with Power Automate & AI-driven automation. ✅ Cloud Solutions – Secure cloud migration and ... read Query Minds, LLC reviews & insights

    $50 - $99/hr
    2 - 9
    2025
    Sacramento, California
  • Altumind delivers comprehensive digital Innovation solutions, empowering businesses to navigate and thrive in an ever-evolving digital landscape.  Specializing in strategic digital transformation, experience design, and website and mobile app development, we craft intuitive, user-centric experiences powered by data-driven innovation and cutting-edge technology.  With a vision of seamlessly integrating technology and human-centered design, we help businesses ... read Altumind Global reviews & insights

    $50 - $99/hr
    50 - 249
    2016
    Wilmington, California
  • Founded in 2006, Technosys Solutions is a software development partner specializing in custom web and mobile app development, enterprise automation, and AI-driven solutions. With over 18 years of proven expertise, we help startups, SMEs, and enterprises accelerate their digital transformation journeys through scalable, secure, and high-performance technology. Our hybrid delivery model combines onsite collaboration in ... read Technosys Solutions reviews & insights

    NA
    10 - 49
    2006
    California City, California
  • Optisoft Labs is a dynamic digital agency that has been helping businesses optimize their digital presence since 2014. Our team provides services including logo design, website development, app development, eCommerce solutions, branding, and digital marketing. We focus on creating customized and effective digital strategies that foster meaningful engagement with your audience. Our approach balances creativity, ... read Optisoft Labs reviews & insights

    $25 - $49/hr
    50 - 249
    2015
    North Highlands, California
  • With over 12 years of experience, we're an award-winning digital agency dedicated to helping our clients succeed. Since we started in Taylors, South Carolina in 2013 and expanded to San Diego, California, we've been driven by a passion for delivering exceptional results. We believe that great communication is key to exceeding expectations and creating unforgettable ... read Brandrums reviews & insights

    $25 - $49/hr
    10 - 49
    2017
    San Diego, California
  • Founded in 2007, NerdTek Inc. has established itself as a global leader in software services, offering cutting-edge technology solutions across diverse industries. As an ISO-certified, mid-sized IT company, we are dedicated to delivering innovative business solutions that drive digital transformation and enhance brand presence.

    NA
    2 - 9
    2007
    Rancho Cucamonga, California
  • Aspire Systems is a global technology services firm serving as a trusted technology partner for our customers. We work with some of the world's most innovative enterprises and independent software vendors, helping them leverage technology and outsourcing in our specific areas of expertise. Our services include Software Engineering, Enterprise Application Services, Infrastructure & Application Support, Data & Analytics, and Cloud ... read Aspire Systems reviews & insights

    < $25/hr
    250 - 999
    2009
    San Jose, California
  • SPD Technology is a global tech consulting and custom software development company with over 650 experts and delivery centers across Europe. Since 2006, we’ve been a trusted technology partner to startups, SMBs, and enterprise companies—including PitchBook, Morningstar, Space Needle, Blackhawk Network, and Poynt—helping them drive innovation, scalability, and long-term business growth. Today, four of our ... read SPD Technology reviews & insights

    $25 - $49/hr
    250 - 999
    2006
    San Francisco, California
  • We're a full-service, fully integrated creative advertising and marketing agency on the rise. Recently honored to be named to the INC. 5000 list of the fastest growing companies in America, and twice to the Orange County Business Journal’s Top 25 fastest growing companies in the OC, we partner with brands who share our relentless optimism ... read INK Agency reviews & insights

    $25 - $49/hr
    10 - 49
    2007
    Laguna Beach, California
  • Counted among the trusted names, XHTMLJunction is a top-rated Mobile and Web Development Company located in Oak Park, CA. Bestowed with a distinguished team of 40+ web professionals who are well-versed with all major mobile and web development technologies. For our exceptional, high-quality services, we are honored to receive prestigious ratings of 4.7 out of ... read XHTMLjunction - Web Development Company reviews & insights

    NA
    10 - 49
    2004
    Thousand Oaks, California
  • Horizon lab is a Product Studio - DevShop specializing in early-stage product experiments and corporate digital transformation projects. We love thinking outside of the box and innovating. Most importantly, we love to move lean to validate our and your ideas.

    $50 - $99/hr
    2 - 9
    2022
    Irvine, California
  • Transforming Legacy Systems into Scalable, AI-Powered Solutions for Small & Medium Businesses At Topcone, we specialize in reinventing legacy software with custom, AI-powered ERP solutions that help businesses scale and thrive. Our solutions are designed to be extensible, mobile-friendly, and accessible from any device. THE IMPACT WE DELIVER     •    50,000+ active users benefit from ... read Topcone Inc reviews & insights

    NA
    2 - 9
    2011
    Los Angeles, California
  • Cali Web Studios is a full-service web design and development agency whose prime motive is to deliver top-notch website design and development solutions for all industries and clients. We believe that web design is the key to digital success as it establishes the first impression, and acts as a 24/7 salesperson for your business. With ... read Cali Web Studios reviews & insights

    $100 - $149/hr
    50 - 249
    2018
    San Jose, California
  • Horizon-Labs.co is a team of coders, product builders, engineers, and founders in Silicon Beach and Silicon Valley. Our leadership team includes a Y-Combinator CTO (S19), the former co-founder & CTO of Commons (acquired by Mozilla), and a former seed VC & startup accelerator. We specialize in early-stage product experiments that scales with product-market fit. Our ... read Horizon-Labs.co reviews & insights

    $50 - $99/hr
    10 - 49
    2022
    Irvine, California
  • Our industry experts make sure to deliver bespoke designs so that your brand stands out amongst competition.Over more than 20 years, we’ve fostered trusted relationships across government, industry and global forums.A client once told us that where the others focus on one star one issue we see the whole sky.

    NA
    10 - 49
    San Jose, California
  • At our core, we are driven by the dedication to deliver exceptional web development products and services tailored to your unique needs. With over a decade of experience in the industry, we have honed our expertise in developing cutting-edge websites and web applications that captivate audiences and drive success

    NA
    10 - 49
    2023
    Moorpark, California
  • We have a wide range of logo designs choices, themes and revisions option for you to be completely satisfied with your brand's visionary work. We proudly announce our experience of more than 20 years in bringing people's dreams to reality and a smile on their faces.We are pleased to showcase our creative skills through our ... read Designs Fort reviews & insights

    NA
    10 - 49
    Irvine, California
  • Web Expert inc stands out as the most user-friendly website builder that simplifies the entire process, from website structure to design. With a superior editor that surpasses traditional drag-and-drop builders, you can create a website and share it effortlessly on social media.

    $200 - $300/hr
    50 - 249
    2016
    San Jose, California
  • iGeekTeam vouch that our solutions are assuredly effective to drive your business and tied into the advanced and up to date technology. Our skilled team zealously seeks the latest design and development trends so that we can provide you with lasting quality projects for your business. We are ambitious leaders in our industry, and we ... read iGeekTeam LLC reviews & insights

    < $25/hr
    10 - 49
    2015
    Tustin, California
  • Coding Crafts is a custom software development agency based in San Francisco (est. 2019) specializing in mobile apps, PWAs, AI, cloud, SaaS, blockchain, and no-code solutions. Over a decade, we've delivered 30+ projects with 25+ happy clients and 80% retention. Our human-centered, research-driven approach ensures precision at every stage—from discovery and UX design to launch ... read Coding Crafts reviews & insights

    $25 - $49/hr
    10 - 49
    2018
    Santa Clara, California
  • Our mission is to provide high quality engineering services to small and medium sized companies at the lowest cost.  We utuilize software developers in Eastern Europe with local (US) project management.   This virtually eliminates the business risk and insures that you recieve the best servcies for the money. We develop mobile apps, IOT devices, Front ... read TechFlex Development reviews & insights

    $50 - $99/hr
    2 - 9
    2015
    Newport Beach, California

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