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
364 Companies
Rankings updated: April 18, 2025
We are a Creative Development Agency & Consultancy.First we listen and strip down your idea to reveal the core of your business objectives.This means designing a strategy that will best support the users total experience, end-to-end.Then our [... view the full profile of Naked Development]Irvine, California Under 49 Inquire $25,000 - $50,000
Driving Change Through Technology - Apps, Ecommerce, Staff Aug, BPO, Next Gen Tech and more!We are the nerds that every company wants in their tech division; experience, innovative and imaginative to the core!With more than 200 innovative software products and solution delivered, Trango [... view the full profile of Trango Tech]San Jose, California 100 - 249 Inquire $1,000 - $10,000
Goji Labs - Building It Right the First TimeAt Goji Labs, we are a web and mobile app development company headquartered in Los Angeles. With over 10 years of experience, our team has helped startups, businesses, and non-profits launch hundreds [... view the full profile of Goji Labs]Los Angeles, California Under 49 $149/hr $25,000 - $50,000
Top US Mobile & Web App Development AgencyAppMakersUSA is a US-based full-service mobile application development company. We specialize in building cross-platform websites and apps (meaning iOS & Android for the price of one), informing your [... view the full profile of AppMakers USA]Woodland, California Under 49 Inquire $10,000 - $25,000
Quality, Experience, Transparency, ResultsMercury Development offers best in class Software Development, Mobile Apps, UI/UX, QA, ML, Data Science and more. With over 23 years in business, and over 400 employees, Mercury has the experience [... view the full profile of Mercury Development]San Diego, California 250 - 499 $50/hr Inquire
Solving complex problems with design and technology since 2005.We craft digital products that streamline your processes, expand your customer base, and drive business growth. Strategically located within your reach, we'll take your ambitious project from an [... view the full profile of Infinum]Los Angeles, California 250 - 499 Inquire $50,000 & Up
A Reliable Full-Service Software Development, Cloud, DevOps and QA partnerLeveraging 30 years of excellence designing, developing, deploying and supporting world-class software solutions, Kanda Software has established itself as a trusted Software Development, Cloud [... view the full profile of Kanda Software]Alameda, California 500 - 999 $50/hr $50,000 & Up
Decades of Experience, Building Platforms for the Worlds Top Brands - USA & CanadaEssential Designs builds custom software platforms for the worlds leading brands, and companies of all sizes. Our technologies include Mobile Applications, Web Based Applications and Desktop. [... view the full profile of Essential Designs]Culver City, California 50 - 99 $50/hr $25,000 - $50,000
Build Intelligent Apps for Web, Mobile, Data, AI and CloudAzumo helps businesses build intelligent apps by providing nearshore, top-tier developers skilled in AI, data engineering, and enterprise web and mobile applications. Our expertise has earned the [... view the full profile of Azumo]San Francisco, California 100 - 249 $55/hr $50,000 & Up
Get what matters!Suffescom is a leading mobile app development company offering top-notch solutions across diverse industries. [... view the full profile of Suffescom Solutions Inc]Los Angeles, California 250 - 499 Inquire $10,000 - $25,000
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We provide solutions that we are proud of. Otherwise, we don't.EffectiveSoft delivers tailored software engineering services that empower clients to disrupt industries and enhance customer experiences. [... view the full profile of EffectiveSoft]San Diego, California 250 - 499 $50/hr $25,000 - $50,000
Transform Fast: Your App on iOS & Android Awaits!Koderspedia | Mobile App Development in Palo Alto [... view the full profile of Koderspedia]Palo Alto, California Under 49 Inquire $1,000 - $10,000
Transforming Ideas into Intelligent SolutionsAristek is a custom development company specializing in AI and DS solutions for EdTech, HealthTech, Logistics, and Retail. Our experts have 22+ years of experience, serving 40+ global clients and [... view the full profile of Aristek Systems]Irvine, California 100 - 249 $50/hr $25,000 - $50,000
Software, mobile and SaaS application development since 2004.We are located in beautiful Phoenix, Arizona, and we can meet you in person anywhere in Arizona or Southern California. We have clients coast to coast and we have a long and proud history as a [... view the full profile of Data Titan]Los Angeles, California Under 49 $100/hr $1,000 - $10,000
Technology Partner for 170+ Startups.Offering Chatbot, IT, and Software Solutions. Talentica Software is an innovative outsourced product development company that provides startup-oriented and dedicated remote teams to help startups [... view the full profile of Talentica Software]Pleasanton, California 500 - 999 $30/hr $50,000 & Up
VinnCorp - Digital Transformation FirmVinnCorp 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 [... view the full profile of VinnCorp]Elk Grove, California Under 49 $25/hr $1,000 - $10,000
Elevating your place on the digital landscapeEvrone is your go-to custom software development company that offers a comprehensive range of services - from web development to mobile app development, design to Java development, Python Django [... view the full profile of Evrone]San Francisco, California 50 - 99 $50/hr $10,000 - $25,000
Your trusted partner for software development and team augmentationDiffco is a global software development and team augmentation company based in Silicon Valley. With over 16 years of experience delivering robust software solutions in mobile, web, and AI development [... view the full profile of Diffco]San Jose, California 50 - 99 $70/hr $25,000 - $50,000
LEAD GEN. | SEO/PPC | WEB DESIGN | VETERAN LEDFunnel Boost Media is an all inclusive digital marketing company based in San Antonio, Texas. FBM specializes in everything from the creation of your marketing piece or website to the online [... view the full profile of Funnel Boost Media]Los Angeles, California Under 49 $100/hr $1,000 - $10,000
We build tailored data platforms that help businesses collect, transform and turn data into insightsGroupBWT is a consulting firm specializing in data management and the construction of data platforms. Our approach combines classical data warehousing with robust visualization tools, ETL processes [... view the full profile of GroupBWT]Los Angeles, California 50 - 99 $45/hr $1,000 - $10,000
Bringing awesome ideas to lifeCloseloop is a renowned custom software development company in California, offering innovative software solutions to its clientele to meet modern digital trends. We specialize in custom software [... view the full profile of Closeloop Technologies]Mountain View, California 100 - 249 $25/hr $25,000 - $50,000
Your Vision. Our Expertise. Shaping the Future!TekRevol is a global leader in digital innovation, dedicated to creating advanced products ranging from mobile apps to AI-enhanced software solutions. Our goal is to help businesses outperform their [... view the full profile of TekRevol]San Francisco, California 250 - 499 $35/hr $25,000 - $50,000
Custom Website Design Strategy. Local US-based team! We Preserve & Optimize your SEO in the ProcessWe have 10+ years of experience designing websites from scratch. Our background and emphasis in behavior science allows us to creatively design websites to convert. [... view the full profile of ESEOspace]San Diego, California Under 49 Inquire $1,000 - $10,000
Where Innovation Meets App-solute SuccessKonstant Infosolutions is a leading digital innovation and mobile app development company, offering top-notch solutions across diverse industries. With expertise in healthcare, on-demand services [... view the full profile of KONSTANT INFOSOLUTIONS]Palo Alto, California 100 - 249 $25/hr $10,000 - $25,000
We Help Companies Win At Digital Marketing!PoolMarketing.com is the leading digital advertising agency in the pool & spa industry. With clients from coast to coast, we provide best-in-class marketing services for pool builders, pool service [... view the full profile of PoolMarketing]Sacramento, California Under 49 $150/hr $1,000 - $10,000
A Los Angeles-European branding agency, we craft compelling brands for the ambitiously bold.At Revelation, we excel in creating remarkable brands that blend digital innovation with tangible products. Dive into our website to discover the projects we've proudly worked on, highlighting our [... view the full profile of Revelation Agency]West Hollywood, California Under 49 Inquire $10,000 - $25,000
Digital Marketing SolutionsWith expertise in emerging and traditional markets, experience working with blue chip and new chip companies, and the support of a committed development team, we have been partnering with customers [... view the full profile of Evolve Media]Claremont, California Under 49 $220/hr $10,000 - $25,000
High Voltage Code Since 2010ELEK+RIK is an app development and digital revenue powerhouse founded during the app boom era. Our forte is helping solopreneurs speed to market with software engineered for revenue. [... view the full profile of ELEK+RIK]Sacramento, California Under 49 $55/hr Inquire
Revel in the media presence we create for you!Welcome to Bytes Technolab a New-Age Digital Transformation and Product Engineering Company that keeps AI & ML innovations at the heart of everything. [... view the full profile of Bytes Technolab Inc.]Pleasanton, California 100 - 249 $20/hr $1,000 - $10,000
Software Outsourcing & Development | 500+ Active ClientsFounded in 2009 by Nacho de Marco and Paul Azorín, BairesDev provides top 1% tech talent to a range of clients, from startups to Fortune 500 companies. [... view the full profile of BairesDev]San Francisco, California 1000 & Up $50/hr $50,000 & Up
Top UI/UX design, web design, and branding agency in San Francisco.We're a global group of strategists, designers, and engineers building notable brands and premier digital experiences that captivate users worldwide.Our unified, AI-infused creative approach [... view the full profile of Clay]San Francisco, California 50 - 99 $175/hr Inquire
Your Transparent Yahoo PPC StrategistsDive into comprehensive search engine marketing with Jives Media. We're experts in Yahoo PPC, ensuring optimized campaigns for superior ROI. Through real-time tracking and daily adjustments, we [... view the full profile of Jives Media]San Francisco, California Under 49 $125/hr $1,000 - $10,000
We make a differenceI am grateful that you took the time to visit! Because you are here, I may assume that you are searching for help with some aspect of software development, whether it is UI/UX design or mobile app [... view the full profile of Differenz System]Los Angeles, California 100 - 249 $30/hr $25,000 - $50,000
Since 2002 in the software development business. Companies from 27 industries choose us.With over 20 years of industry experience, Gecko Dynamics is a trusted partner for startups and enterprises. Our team delivers end-to-end solutions using Java, Angular, Flutter, and AWS. From ideation [... view the full profile of Gecko Dynamics]San Francisco, California 50 - 99 $50/hr Inquire
Reforming Tomorrow's TechEmpowering California Businesses with Bespoke Web Design and Development Services. [... view the full profile of Tech Reforms]Los Angeles, California Under 49 $30/hr $1,000 - $10,000
A No.1 digital and software development company!SynergyTop is a San Diego-based digital commerce company that offers a range of services, including software development, product engineering, e-commerce development, mobile application development [... view the full profile of SynergyTop]San Diego, California 50 - 99 $50/hr $1,000 - $10,000
Hire World-Class Developers.Outsource Your Software Development Services to DreamzTech, the 10 Yrs.+ Exp. Award-Winning Software Design & Development Company based in USA, UK, India & South Africa. Hire World-Class Offshore [... view the full profile of DreamzTech Solutions]San Francisco, California 250 - 499 $20/hr $10,000 - $25,000
Keep your business competitive in an app-connected world.Expert website design and development - mobile application development - API integration: we do it all! Your online presence can't be left to just anyone. We are an agile-focused agency with a high [... view the full profile of Sunrise Integration]Pasadena, California Under 49 $150/hr $1,000 - $10,000Need Help Selecting The Right Agency For Your Project?
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About The Author and Expert Reviewer
Selina Garcia has authored 500+ articles and edited 50+ published books in economics, law, and history. Her diverse background in marketing, publishing, and museum curation has enhanced her writing and research abilities. This 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.
Gary Kuznetsov is a seasoned programmer, web developer, and certified Laravel developer. He was a Senior PHP developer at Blue Fountain Media, then soon became Head of Development at Digital Silk. With hundreds of successful websites/applications deployed throughout his career, it is no surprise that he is now a Chief Technology Officer at DesignRush, spearheading digital products and solutions to meet the company’s challenges and objectives.
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