Top App Developers in California
Are you looking for a top mobile app development company in California, United States? Here is the list of top mobile app developers in California (Android & iPhone) with verified client reviews & ratings. Since California is the heart of the USA’s technology industry, thousands of app development companies exist there. This makes it difficult for budding entrepreneurs to pick a reliable and efficient hiring mobile app agency for their project. To make things easier for prospects, Goodfirms has prepared a chart of iconic companies that provide excellent mobile app development services in California, focused on ‘iPhone app development in California’ and ‘Android app development in California.’
List of Top Mobile App Development Companies in California
-
Embarking on a journey in 2016, ZAMH Technologies LLC has emerged as a trailblazing force in the world of Development and Design. We take immense pride in crafting superior Software, Web, Mobile, NFT, Web 3.0 Blockchain and Creative Designing solutions that leave a lasting impact on companies worldwide. With our powerhouse Technology Development and Innovation ... read ZAMH TECHNOLOGIES LLC reviews & insights
$50 - $99/hr10 - 492016West Athens, California -
For over 10 years, we've delivered targeted local SEO services for businesses aiming to dominate their local market, increase qualified local leads, and grow revenue from nearby customers. Our tried-and-true local search engine optimization services and practices have generated countless success stories for clients targeting specific geographic areas.
< $25/hr2 - 92025Gonzales, California -
Nexiphor: Where Imagination Meets Innovation Nexiphor is a technology, dedicated to transforming ideas into powerful digital solutions. With over three years of experience, Nexiphor specializes in web and mobile app development, UI/UX design, custom software, e-commerce platforms, cloud computing, and SEO optimization. Our expertise extends to advanced blockchain services—including smart contract and NFT development—as well ... read Nexiphor reviews & insights
$50 - $99/hr10 - 492023Jackson, California -
NextBridge Systems is all about helping businesses grow with technology. We provide custom software, web development, and digital marketing solutions that are simple, effective, and built to fit your needs.
$25 - $49/hr10 - 492021Anaheim, California -
ScaleTech’s intelligent bots use advanced NLP to engage potential leads with contextual conversations that feel authentic. By asking targeted questions, the bots assess interest and qualify leads before they enter the sales funnel. This automated process helps businesses prioritize quality leads, improving efficiency and boosting conversion rates. Segment and nurture leads with precision to ensure ... read ScaleTech Solutions reviews & insights
$25 - $49/hr50 - 2492018San Francisco, California -
Aldebron is a next-generation software and innovation company that builds powerful digital ecosystems for modern businesses. Our expertise spans custom app development, SaaS platforms, automation systems, and AI-integrated digital solutions. We design, develop, and deploy technology that simplifies operations, enhances customer experience, and fuels growth. Our flagship product, Aldebron One, is an all-in-one club management ... read Aldebron reviews & insights
$50 - $99/hr2 - 92023Tustin, California -
Rankyfy is an advanced AI-powered SEO platform designed to help businesses boost online visibility, track rankings, and achieve sustainable growth. With intelligent tools for keyword tracking, backlink monitoring, website audits, and competitor analysis, Rankyfy simplifies SEO management through real-time insights and automation. Whether you’re a startup or an established brand, Rankyfy empowers you to make ... read Rankyfy reviews & insights
< $25/hr250 - 9992002Oxnard, California -
Our conscientious, hard-working team is well-equipped to handle all your real estate and business disputes. We’re tough negotiators and skilled litigators, and we work toward efficient solutions that protect your property values and business interests for the long haul. And our estate planning team ensures that you have a plan in place for all your ... read LS Carlson Law, PC reviews & insights
$100 - $149/hr50 - 2492006Aliso Viejo, California -
Technology Leaders rely on Right Balance to take away the pain of hiring talented people fast at volume to deliver the roadmap.
$25 - $49/hr50 - 2492015Santa Monica, CaliforniaAlex Tamoykin (Founder/CEO)
- Rachel Brown -
Errna is a leading technology company specializing in the areas of niche technologies like blockchain consulting and development, cryptocurrency exchange development, smart contracts application development, digital tokens creation, ICO launching, and other related solutions. We have been helping businesses from all around the globe venture into blockchain technology with our extensive expertise and experience in ... read Errna.com reviews & insights
$50 - $99/hr250 - 9992015San Jose, CaliforniaBest Choice for Blockchain Development
- Diana Rayan, Co Manager at Exeter Finance -
GetDevDone is a software development company that delivers reliable and compliant digital solutions to marketing agencies and brands since 2005. We specialize in software development, experience design and custom AI solutions across finance, government tech and public services, media and telecommunications, automotive manufacturing, and eCommerce. Our portfolio includes over 131,000 projects for more than 15,150 ... read GetDevDone reviews & insights
$25 - $49/hr250 - 9992005San Francisco, CaliforniaTheir workflow is perfect!
- Anonymous -
ZUZEX means aesthetics, functionality, and conciseness in every single line of code. ZUZEX serves diverse industries and verticals, helping B2B and B2C companies create profitable digital solutions, from streamlined applications to high-performance enterprise systems.
$50 - $99/hr50 - 2492008Santa Rosa, CaliforniaVery reliable partner to build your software
- Michael Gutkins -
We are a United States-based marketing and development firm that implements technologies and systems to streamline business operations, increase visibility and build long-term ROI. Our services include business strategy, data analysis, and web applications. We understand that when you achieve a certain level of success, it’s difficult to know what to do next. We view ... read Reverence Global reviews & insights
$200 - $300/hr10 - 49Oakland, CaliforniaVery Professional Service
- Julie Woessner -
Dizzain.com is a New York digital agency, specializing in website development, WordPress design and internet marketing. We help our clients achieve their business goals, developing and implementing exclusively devised digital strategies. Our team of developers, designers and marketers defines clients’ core requirements, refines technical specifications and delivers meaningful result.
$50 - $99/hr10 - 492006Sunnyvale, CaliforniaHighly recommended
- Barbara Holler, Production Equipment Sales at EC Professional -
Smart It Concepts is a leading smartphone app, website, and aoftware development founded by a UC Berkeley Graduate, Moninder Kakar, with a team of engineers from Stanford Univeristy and UC Berkeley. The company also has its sub-offices in Tel Aviv, Israel and Noida, India. Smart IT Concepts offers the best app, website, and software development solutions ... read Smart IT Concepts reviews & insights
$50 - $99/hr10 - 492008Palo Alto, CaliforniaApp Build for our limo company
- Moe Kakar, CEO at JournAlong.com -
In the heart of every idea lies a pulse, a rhythm, a dream. At The Web Mastro , we're not just designing websites; we're crafting digital heartbeats. Sculpted Designs, Seamless Experience Marrying artistry with technology, we shape experiences that captivate and connect. Every pixel paints a picture; every line tells your story. Digital Echoes, Amplified ... read The Web Mastro reviews & insights
$25 - $49/hr10 - 492020Oxnard, CaliforniaLet The Web Mastro develop my logo. Main objective was to create a logo that captured in one clean l
- Kin Brown, Owner at Chef Brown Catering -
ALFATEK leverages decades of experience spanning multiple industries, covering IT Project Management, Infrastructure Engineering, Back-end System Administration, Software Development, and continuous IT support for corporate and governmental sectors. Our services encompass both on-site and remote management of enterprise network infrastructures, encompassing everything from Domain Controllers and network peripherals to overseeing Web Properties, Cyber Security, Databases, ... read ALFATEK reviews & insights
$150 - $199/hr10 - 492013Concord, CaliforniaTitle: IT MSP Firm
- Eugene Grach, CEO at Torture Museum -
360 Digital Paths is an agency that believes in existing on digital foundations. We discovered our creative calling to build this agency of passionate people in the midst of 2010-11. We are a breed of creative minds that have immersed together in bringing out-of-the-box digital ideas to modern brands in sectors like IT, Marketing and ... read 360 Digital Paths reviews & insights
< $25/hr2 - 92010Fresno, CaliforniaExcellent Services
- Roopali Utreja, Digital Marketing Manager at at TravelBoutiqueOnline -
Hi! We are RIVO AGENCY — a team of professionals with a proven track record in delivering efficient, user-friendly, and scalable digital solutions. We specialize in custom web development, CRM systems, WordPress websites, and UI/UX design for businesses across various industries. Our team handles full-cycle development — from initial idea and wireframes to final deployment and ... read RIVO AGENCY reviews & insights
$25 - $49/hr10 - 492010Citrus Heights, CaliforniaCRM Development, AI Solution Development, Software Integration
- Gary N, Director of Operations at Capital Enterprise -
DApplica is a blockchain development company building projects in the blockchain and cryptocurrencies industry. We are offering full development cycle for decentralized applications on different blockchains, as well as tokenization and technology consulting.
NA10 - 492018San Francisco, CaliforniaGreat Blockchain Specialists
- Roman Skaskiw, Co-Founder at CryptoLions -
iSpatial Techno Solutions (IST) an ISO 9001:2015 certified organization, having nearly decade of experience in the area of Information Technology Planning, Program management, solutions and services. Head office is located in Hyderabad, India. We have successfully delivered solutions and services to our clients across the globe by collaboration with international partners. Founder members have held ... read iSpatial Techno Solutions reviews & insights
< $25/hr50 - 2492009San Diego, CaliforniaGood Place to Work
- Srinivasa Sodisetti, Project Manager at RMSI Pvt. Ltd. -
With more than 12 years of experience, our company is driven by a deep understanding of the latest innovative technologies to cater to the unique needs of businesses. Our mission is to tackle business challenges by providing cutting-edge technology solutions and connecting talented developers with industries worldwide. We prioritize strategic partnerships, carefully selecting those that ... read THECONSRL reviews & insights
$25 - $49/hr50 - 2492006San Diego, CaliforniaExceptional Web Development for Our Online Store by Thecon
- Manager at Baterie Externa -
Pixel Punch is a leading web3 development company specializing in a wide range of blockchain services. We provide innovative solutions that encompass decentralized applications (dApps), smart contract development, blockchain integration, and more. Our team of experts is dedicated to delivering cutting-edge technology and exceptional service, ensuring that our clients stay ahead in the rapidly evolving ... read Pixel Punch reviews & insights
NA10 - 492018Anaheim, CaliforniaMy experience with Pixel Punch was highly collaborative and efficient
- Maggie Greene -
Web Developer LLC is an award-winning team of strategists, designers and developers who provide custom website solutions to increase business efficiency.
$50 - $99/hr10 - 492014San Jose, CaliforniaSeaside Serenity: Web Developer LLC's Exceptional Services
- Jouge Dawson, -- at Ocean Park Motel -
Websites are more than just code—they are what you want your clients to see you as. Building the right brand identity online is crucial in today's fast-paced world of eCommerce. At Crafted Code, we have you covered. From logo designs for your brand to responsive web design that translates well to different platforms to great ... read Crafted CODE reviews & insights
$100 - $149/hr10 - 492015California City, CaliforniaOur website had a thorough SEO assessment by Crafted Code
- Derek Smith, Project Manager at TOTO Group -
Sibedge is a software development company with significant experience in creating projects around the world, including Southeast Asia and the Middle East. Since 2006, the company has implemented more than 400 projects in the business domains of fintech, construction, education and medtech. Sibedge helps businesses get the most out of technology. Sibedge's service architecture includes ... read Sibedge reviews & insights
$25 - $49/hr50 - 2492006Cupertino, CaliforniaGood option for zero-time prepare full-scale projects
- Aleksey Moiseev -
We Bring Your Ideas to Life... Here at “CODEHUNTERSS”, we helped many ideas to turn into real internet businesses and that’s the reason our client has chosen us repeatedly for their custom web design, complex web application development, and mobile app development.
$25 - $49/hr10 - 492020Torrance, CaliforniaExceptional Website Development Service
- Doctor at Al-Rahat Physiotherapy Clinic -
Welcome to Tech Reforms – Your trusted partner for comprehensive web design and mobile app development. Transform your digital footprint and connect with your audience like never before. Don't let tech talent gaps hold your business back. Contact us today to learn more about how we can help you achieve your goals.
$25 - $49/hr10 - 492017Los Angeles, CaliforniaThe team was prompt, professional, and chock-full of direction and expert recommendations.
- Edwin Olson, CEO and Co-Founder at May Mobility -
Are you looking for website design and development, mobile app development (Android & iPhone) Solutions for your project needs? TOPS Technologies is one of the highly competent software solution provider in the field of Web, Mobile based Application Development and other IT integrated services. Our proiciency lies in converting existing business models into sustainable business ... read TOPS Technologies reviews & insights
< $25/hr50 - 2492008Mountain View, CaliforniaSecure your future – start learning today with TOPS Technologies!
- brijesh darji, eduction at eduction -
DaySpring Technologies is a responsive, detail-oriented San Francisco Web and mobile application development and Salesforce consulting firm. Engineering quality solutions since 1997. From heavy-duty, data-crunching apps to niche Web site gems, we create solutions to match the diversity of our clients. Uncompromising quality and an experienced team are our hallmarks. Unparalleled client satisfaction is the result.
$150 - $199/hr10 - 491997San Francisco, CaliforniaWe love working with Dayspring Technologies!
- Melinda Tuan, Principal at Melinda Tuan Consulting -
Mayven is an independently-owned software development shop headquartered in San Francisco with a second office in booming Austin, Texas. We provide a senior-led team and hands on approach to all projects, taking into account each team's unique needs and metrics for success. The goal of our process is to build best-in-class software products that provide ... read Mayven reviews & insights
$100 - $149/hr10 - 492015San Francisco, CaliforniaFrank Collective Seal of Approval!
- Mitchell Orkis, Chief Strategy Officer at Frank Collective -
Cider is a Software Development Company based in the heart of Silicon Valley. We create innovative and customer-centric solutions for your business. Developing products with us helps your company: increase sales, improve customer experience, compete in a specific market, and uncover e-commerce opportunities. We provide individual resource and full project teams with specialization in all ... read Cider reviews & insights
$50 - $99/hr250 - 9992015San Francisco, CaliforniaWebsite Management for Marijuana Dispensary
- Misha Breyburg, Managing Partner & Founder at MEDITHRIVE: Premier Cannabis Boutique -
Streamline is a digital innovation agency. We create connected products, mobile apps, and content management systems that increase user engagement, growth, and your bottom line. With years of experience partnering with start-ups, government agencies, SMEs, creative agencies, and the Global 500, we know how to help you conceive, design, and develop great ideas into great ... read Streamline Social reviews & insights
$100 - $149/hr10 - 492009San Francisco, CaliforniaLove working with Streamline Social: Realiable & Responsive
- Mayling Chung, Freelance Digital at Freelance -
WebSight Design, Inc. (WSD) provides clients with a range of web development services including web site design, programming, hosting, mobile application development, advertising, internet and social media marketing. Founded in 1995, we have since provided our clients with creativity, dependability and value. Our clients include over five hundred companies ranging from large multinational corporations to ... read WebSight Design reviews & insights
< $25/hr2 - 91995Sausalito, CaliforniaDeveloper rock stars.
- Todd Gallopo -
At PROS, our team of experts is here to help you achieve your internet marketing and technology goals. Using proven technologies, our cutting edge platform was designed to grow as your business grows. Through our many partners, like Google and Amazon, we bring a complete, best-in-class experience to your customers based on data driven results. ... read Pros Inc reviews & insights
NA2 - 9San Diego, CaliforniaVery Helpful and Proactively Improve the User Experience and Website Sales
- John Jordan, CEO at ERPCorp -
We are a software development company that transforms your idea to scalable solution. We provide solutions like startup MVP building, upscaling existing business solution and software outsourcing. We also provide innovative solutions powered by AI.
< $25/hr10 - 492018Richmond, CaliforniaBeesoul LLC Excellent Web Development & Service Providers.
- Prabesh Ghimire, Photographer at Lights & Shadows -
AB Ark is a software services and IT consultancy firm on a mission to be more than a vendor — we're your long-term digital transformation partner. We design and deliver technology solutions tailored to the specific needs of your business, with a relentless focus on efficiency, productivity, and competitive edge. No fluff. No cookie-cutter approaches. ... read AB ARK Pvt Ltd reviews & insights
$25 - $49/hr50 - 2492023Alameda, California5-Star Review for AB Ark Private Limited
- Karabo Letsholo, Director/Founder at Mahala Airtime -
Technology Mindz is a cutting-edge IT service and solution provider that empowers enterprises to reshape their businesses in the digital era. With over a decade of expertise and innovation in design, development, and support, we serve as a comprehensive solution for enterprises seeking to overcome their critical IT challenges.
$25 - $49/hr50 - 2492012Cupertino, CaliforniaThe IT services provided by Technology Mindz are of a high standard.
- Ama William -
Erbis: Your Tech Powerhouse Erbis is a leading custom software development company empowering global businesses with comprehensive solutions. With 100+ senior-level engineers across 3 offices, we've optimized over $110M in costs for 45+ worldwide clients. Specializing in Supply Chain and Legal Tech industries, we offer services ranging from logistics management to document automation. Our flexible ... read Erbis reviews & insights
$25 - $49/hr50 - 2492012San Francisco, CaliforniaVery Timely and Responsive.
- Anonymous -
Alternative-spaces Inc. is an International outsourcing technology business solutions provider. As a custom software development company, our unique blend of U.S. project management, combined with English-speaking Ukrainian project managers enable rapid SAAS development and significant project augmentation for U.S. based development teams, providing day and night development. We have done work for U.S. government agencies ... read Alternative Spaces reviews & insights
$50 - $99/hr50 - 2492000Sausalito, CaliforniaExcellent expert team
- Vitaliy Pismenniy, SMM - manager at openGeeksLab -
We've been working together a long time - since 2007, in fact. Yes, we have our inside jokes, but usually our clients are in on them. That's because it's our goal to become part of your team while we work together. It's much more fun - and effective - that way. Our development team is ... read Cofa Media reviews & insights
< $25/hr10 - 491998California City, CaliforniaGreat Ecommerce Development Team
- Danny DeMichele, CEO at Elevated -
YouTeam is a marketplace for building offshore software development teams. We leverage the dynamic availability of talent across the network of 400+ trusted dev shops in 35 countries. As a result, our customers are able to handpick engineers for their offshore team and get the work started within 48 hours. Every engineer passes 3 levels ... read YouTeam reviews & insights
$25 - $49/hr10 - 492014Mountain View, CaliforniaDelivered high-quality products.
- Andrew Alexseyenko, Marketing Manager at TechMagic -
Capitol Tech Solutions is a leading digital development firm providing a full range of design and development services. Founded in 2004, Capitol Tech Solutions is one of Sacramento’s fastest growing companies. We provide a full range of software design, web development services, IT services, digital advocacy and marketing, and fully customized software database development solutions.
$50 - $99/hr10 - 492004Sacramento, CaliforniaGreat Service!
- Landon Bailey, Owner/Attorney at Landon D. Bailey, a Professional Law Corporation -
ISKPRO INC is a trustworthy name in the digital agency. We specialize in designing and developing of interactive web and mobile apps and promoting them through tailor-made digital marketing strategies. Want to connect with us? Visit our website at https://www.iskpro.com/ or call us at (916) 459-4022 for a free consultation!
$50 - $99/hr50 - 2492010Fremont, CaliforniaMultiple Website Design & Development Projects
- Ryan Frank, Owner at Ryan Frank Consulting -
Synverse is the next generation global IT Service Provider and Software Development Company. We are among the best IT managed service provider who offers Mobile app development and website development services.
$25 - $49/hr250 - 9992009San Ramon, CaliforniaExcellent app development Company
- Narayana Reddy, Digital Marketing Executive at KartzHub -
TechiEvolve Inc, a 360-degree digital agency aims to boost the business productivity with numerous services. The company holds noteworthy experience in website design, digital marketing, website development and more. Using the finest and the state-of-the-art technologies, the professionals identify the areas that require attention and do what’s needed.
< $25/hr10 - 492016Torrance, CaliforniaTechievolve provided excellent SEO and marketing, making our website highly functional and user-friendly.
- Phil and Kyle, Employeers at Native Wicks Cotton Co. LLC -
Tekhqs provides quality of work with full of commitment, accountability, and integrity in the most efficient way. Our IT skills and business services are very prominent it can help you to get your desired goals according to your business needs through our expertise and capabilities. Our team delivers excellent work to the customers and advise ... read TekHqs reviews & insights
NA50 - 2492011Richmond, CaliforniaCustom Software Development For in-house efficiency
- Muhammad Bilal Islam, Head Of Marketing at Catalyic Consulting (Pvt.) Ltd -
We're a passionate team of designers, writers, strategists, developers, and account specialists who share a common passion for great design. Together we create extraordinary brand experiences that help companies establish their voice and elevate their brands. Our work is renowned for its highly-crafted design and ability to drive action.
$50 - $99/hr250 - 9992007Sacramento, CaliforniaHad An Exceptional Experience Working With American Web Designers Inc.
- Phillip Stanley
Confused about which partner to choose?
Let our experts study your requirements and send a curated list of trusted companies.
Get a shortlistWhy Trust Goodfirms
Goodfirms is the world’s leading reviews and ratings company featuring 110,000+ tech companies from across the globe, complete with 80,000+ humanly vetted client reviews, detailed portfolios, hourly rates, employee strength, and more to help you choose your perfect tech partner.
Humanly-Vetted Client Reviews
Our researchers have personally vouched for the authenticity of 80,000+ client reviews by speaking directly with clients, cross-checking project details, timelines, and results to ensure 100% credibility.
Data-Driven Rankings
Data powers our company listings. Every company listed is evaluated based on its expertise, experience, market presence, reviews, and client satisfaction rate, which helps buyers confidently choose the right tech partner.
Global Trust & Recognition
Goodfirms is trusted by 110,000+ businesses in 160+ countries to connect with reliable tech partners. Our reputation is built on 80,000+ verified reviews and rankings you can trust.
Transparency In Detail
From verified client reviews and portfolio highlights to service focus and pricing, Goodfirms provides a 360-degree view of every company, helping 2+ million monthly users find the perfect tech partner.
Trending insights from Goodfirms
Valuable insights from top experts accelerate decision-making.
How to Start a Neobank: Step-by-Step Guide for 2026
Planning to start a neobank in 2026? Explore this step-by-step guide covering licensing models, tech stack, compliance, costs, revenue strategy, and key challenges to launch and scale your neobank successfully.
Neobank App Development Cost in 2026: Full Breakdown
This article covers complete information about Neobank app development cost. It includes full breakdown that can help you make smart decisions relating to outsourcing your project to the right Neobank app development company.
UK Mobile App Strategy 2026: 5 Key Trends Driving Business Growth
AI-driven, AR-powered, and 5G-connected mobile apps are changing how UK businesses work. Here are the 5 key trends leading the shift.