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Last updated 30 January, 2025

Best Mobile App Development Companies in California

Mobile App Developers in California

Are you searching for the leading mobile app development company in California? You must have done your research and found a few companies, but we were hoping you could wait until you explore the list we have analyzed and selected for you. TopDevelopers.co is the only reliable platform that not only lists companies when they meet our parameters but also gives 100% freedom to businesses to choose their desired agencies. We analyze hundreds of app development companies (who apply for listing on this platform) but select only those our experts find reliable with excellent expertise and skills in modern technologies and a good portfolio range. We also verify testimonials and reviews given by genuine clients, and based on that, we rank them on our platform. So, whether you want to hire Android developers, iOS developers, or hybrid developers from California, the list brings you all in one place. Just select them and discuss your projects as the rest of the things we have done for you.

List of Top-Rated Mobile App Development Companies in California

533 Companies | Last Updated 31 January, 2025

Margasoft is a software development company that builds business process automation software. As a team of software technology experts, Margasoft works with customers as true partners to understand their…Explore the detailed profile of Margasoft

  • 11 to 50

  • $51 - $100

  • $10001 - $25000

  • California, USA

GoodWorkLabs

We build products with a difference

GoodWorkLabs is the world’s leading software and app development company that delivers cutting-edge custom solutions for global customers. We help our clients in every step of the process from ideation,…Explore the detailed profile of GoodWorkLabs

  • 51 to 250

  • $26 - $50

  • $5001 - $10000

  • California, USA

Oshyn is an award-winning web development and digital marketing agency based in California, US. We are a customer-focused and quality-driven IT company serving both small businesses and large companies…Explore the detailed profile of Oshyn

  • 51 to 250

  • $101 - $150

  • $50001 - $100000

  • California, USA

eInfochips

Enriching lives through engineering excellence

eInfochips, an Arrow company, is a leading global product engineering and semiconductor design services provider. With 500+ products developed and 40M deployments in 140 countries, we fuel technological…Explore the detailed profile of eInfochips

  • 1000+

  • $26 - $50

  • $25001 - $50000

  • California, USA

Droids On Roids

(1 Reviews)

Even Facebook Fell in Love with Our Open Source!

Droids On Roids is an awarded mobile app development and website design company in Poland. We have more than 55 talented professionals, creating top-notch mobile apps and designs for a wide range of industries.…Explore the detailed profile of Droids On Roids

Franciszek

Great devs

  • 51 to 250

  • $51 - $100

  • Less than - $5000

  • California, USA

Horus Studio

(10 Reviews)

Top Worldwide Mobile Development Studio

We are Horus, a worldwide mobile development studio passionate about creating cutting-edge apps. Established in 2018, we have been committed to cultivating enduring relationships, understanding our clients'…Explore the detailed profile of Horus Studio

Anonymous

We highly recommend Horus for any app development or migration needs.

  • 2 to 10

  • $26 - $50

  • $10001 - $25000

  • California, USA

SotaTek

(3 Reviews)

Top Software and Blockchain Development Company

SotaTek is a part of Sota Holdings, a global Software Development as a Service (SDaaS), IT Outsourcing & Consulting group. We provide sustainable Software Development (Web/App/Game), Blockchain, AI…Explore the detailed profile of SotaTek

Serena

Impressive and Innovative App Development

  • 251 to 1000

  • Up to $25

  • $5001 - $10000

  • California, USA

Goji labs is a mobile app development agency that crafts and tailors digital solutions for various enterprises. Custom mobile app development services encompasses several aspects such as Unique design,…Explore the detailed profile of Goji Labs

Anonymous

Impressive project management skills.

  • 11 to 50

  • $26 - $50

  • $10001 - $25000

  • California, USA

  • With a core focus on innovation and user experience, Goji Labs offers result-driven app development.
  • The company, led by an experienced team with more than a decade of industry experience, provides services in 12 countries.
  • It’s a 100% remote company, so you get the flexibility to hire the best team for your project.
  • Quality work and timely delivery have won the firm some top clients, including the World Health Organization, MITSHUBISHI, Predictionstrike, and more.
  • The firm has a proven track record of developing apps across various industries, including healthcare, education, and retail.

Goji Labs has received many reviews, appreciations, and acclamations from clients and ranking platforms. The firm has many awards and recognitions in its name, such as being the most-reviewed UX company in the UK. We have explored some top client testimonials and summarized them here for you.

  • The client applauds the company and its engineers for their user-centric approach and for their experience working on projects across industries.
  • Client appreciates the company for quality apps and design, stating the company focuses on user-centric design.
  • Some appreciate the firm's collaborative approach and maintaining transparency throughout the development process. 
MobiDev Corporation

(3 Reviews)

MobiDev Corporation is a software engineering and consulting

MobiDev Corporation is a software engineering and consulting company incorporated in the US and the UK, with R&D centers in Poland and Ukraine. Since 2009, MobiDev has specialized in building and…Explore the detailed profile of MobiDev Corporation

Alex

Professional and responsive team.

  • 251 to 1000

  • $26 - $50

  • More - than

  • California, USA

Rightpoint, a Genpact company, is the digital consultancy with technology at its core. We design and engineer end-to-end digital experiences to help our clients succeed at the speed of innovation. The…Explore the detailed profile of RIGHTPOINT

  • 251 to 1000

  • $151 - $200

  • $50001 - $100000

  • California, USA

Light IT Global

Custom Software Development Company You Can Trust

Light IT Global provides innovative web and mobile software solutions for startups and enterprises. We offer more than just software development, we focus on clients’ needs, go deep into requirements…Explore the detailed profile of Light IT Global

  • 51 to 250

  • $26 - $50

  • $10001 - $25000

  • California, USA

Vinsol

Using technology to unleash the power of brands..

At Vinsol, we bring brands to life with design based thinking and end-to-end solutions. Our close-knit, future-thinking team has a holistic approach to strategy, product, engineering, content, business,…Explore the detailed profile of Vinsol

  • 51 to 250

  • $151 - $200

  • $25001 - $50000

  • California, USA

Tudip Technologies

(1 Reviews)

Tudip Technologies, One of the Leading IT and Software

Tudip Technologies is a top-notch software development company having 10+ years of experience in the IT field. We have 350+ professionals who are well-versed with technology and innovation and they are…Explore the detailed profile of Tudip Technologies

Aakash

The Best Software Development Company

  • 251 to 1000

  • Up to $25

  • $10001 - $25000

  • California, USA

NEKLO LLC

Ecommerce solutions that maximize your benefits.

NEKLO is a global software development provider with over 15 years of professional experience. We launch ecommerce projects that help businesses in maintaining a strong online presence and in maximizing…Explore the detailed profile of NEKLO LLC

  • 51 to 250

  • $26 - $50

  • $5001 - $10000

  • California, USA

Asap has been offering agile web and mobile application development services for San Francisco Bay Area companies since 2008. We are a team of trustworthy software engineers experienced in designing and…Explore the detailed profile of asap developers

  • 51 to 250

  • $51 - $100

  • $5001 - $10000

  • California, USA

Clay

Creating world-class digital products, web design, and

Clay is a UI/UX design and branding agency based in San Francisco. We partner with the world's top companies to build transformative digital experiences, websites, and brands. Clay defines, designs,…Explore the detailed profile of Clay

  • 51 to 250

  • $201 - $300

  • -

  • California, USA

Medlmobile is a trusted global software development company with more than 10 years of professional experience. MEDL has helped to design, develop, and market hundreds of mobile apps, games, websites,…Explore the detailed profile of medlmobile

Dr.

Well-qualified team of experts!

  • 11 to 50

  • $151 - $200

  • $50001 - $100000

  • California, USA

PlugXR

Anyone can create Augmented Reality Apps without coding

PlugXR is a cloud-based no-code platform that simplifies the process of developing immersive tech applications, including Augmented Reality (AR), Virtual Reality (VR), Mixed Reality (MR), Immersive UI/UX…Explore the detailed profile of PlugXR

  • 11 to 50

  • $51 - $100

  • Less than - $5000

  • California, USA

MindK

Web and Mobile App Development Company

MindK is a full-stack web and mobile software development company. Our clients are enterprise businesses, independent software vendors and startups, who need scalable custom software solutions. Our key…Explore the detailed profile of MindK

  • 51 to 250

  • Up to $25

  • Less than - $5000

  • California, USA

Webential

Hire Full & Part Time Dedicated Digital Talent

Webential is a driving-edge web design, development, and digital marketing agency with a group of similar-minded digital creatives who believe in traveling that extra mile to render exceptional solutions…Explore the detailed profile of Webential

  • 11 to 50

  • Up to $25

  • Less than - $5000

  • California, USA

Infoxen Technologies

In Touch with Excellence

Infoxen Technologies is ISO 9001:2015 certified leading software development company located in India and USA. Founded in 2017, we have been delivering high-quality software development services to independent…Explore the detailed profile of Infoxen Technologies

  • 51 to 250

  • $26 - $50

  • $10001 - $25000

  • California, USA

Located in downtown Los Angeles, we are empowered by an Academy Award-winning team of artists, engineers, and "get it done" producers who bring a diverse body of experience and creative solutions…Explore the detailed profile of Magnopus

  • 51 to 250

  • $26 - $50

  • $5001 - $10000

  • California, USA

Robosoft Technologies

Simplifying Lives with delightful digital experiences

Robosoftin is a leading mobile app development company that develops agile mobile apps for almost every business sector. Powered by the latest technology, our mobile applications are user-friendly and…Explore the detailed profile of Robosoft Technologies

  • 251 to 1000

  • $51 - $100

  • $50001 - $100000

  • California, USA

Clap Creative

A Los Angeles Based Web Design + Development & Digital

Clap Creative is your next door tech firm in Los Angeles offering full-range web services under one roof. An experienced team of web professionals works to create custom internet solutions to meet your…Explore the detailed profile of Clap Creative

  • 2 to 10

  • $51 - $100

  • $10001 - $25000

  • California, USA

Speck Design

We create world class digital and physical products

Speck Design is a Silicon Valley digital and physical product design and development company. For over 25 years, Speck Design has innovated thousands of products that are in your home, hospital, body,…Explore the detailed profile of Speck Design

  • 11 to 50

  • $151 - $200

  • $5001 - $10000

  • California, USA

Frequently Asked Questions

Mobile app development companies in California provide a wide range of services to help businesses build, launch, and maintain mobile applications. Key services include:

Custom Mobile App Development: Whether it's for iOS, Android, or both, developers specialize in building apps tailored to your specific needs.

UI/UX Design: These companies focus on creating user-friendly interfaces that ensure a seamless experience for your app users.

App Testing and Quality Assurance: Developers perform rigorous testing to ensure your app is bug-free, secure, and runs smoothly across all devices.

App Maintenance and Support: After launch, developers offer ongoing support and updates to fix bugs, add new features, and ensure your app remains functional as technology evolves.

App Integration Services: Many development companies offer integration with third-party services, databases, and existing software systems to enhance app functionality.

App Consulting: Some developers provide consultation services to help businesses define the scope of their app project, choose the right technology stack, and map out the development process.

Cloud-Based Solutions: To ensure scalability, many companies offer cloud integration, enabling apps to store and manage data effectively as user bases grow.

To hire the right mobile app development company in California, you can follow the steps given here;

  • Know your requirements, budget, goals, and team you need
  • Find relevant companies from TopDevelopers.co or other listing platforms or Google
  • Use the filter and choose mobile application development companies for the selected region based on different criteria such as costs, expertise, and technical skills
  • Check their portfolios and case studies
  • Ask the team and mobile developers to explain some of the work they do
  • Take interviews with developers
  • Know their expertise, skills, and communication skills
  • Explore if they have built a mobile app similar to yours
  • Check their engagement models
  • Check reviews and testimonials from clients on different sites about the company

Once you go through these details and find them satisfactory, you are good to go with hiring the mobile app development team or company.

Mobile app developers in California have a good knowledge and technical expertise required from app idea conceptualization to final development and deployment. The developers excel at robust coding, UI/UX designing, back-end development, quality testing, third-party integration, cyber security, and others. Furthermore, Californian app developers are well-versed in communication skills that helps them to understand project scope with ease and prepare solution required by their clientele.

It's anywhere between $25 - $150 per hour. Californian mobile app developers are talented in various technologies, and the cost of hiring them will depend on the type of developers you choose to hire. We have calculated the average cost to hire developers in California. Check them out;

Type of Mobile Developer Average Hourly Costs
Jr. iOS Developers $25 - $50
Jr. Android Developers $25 - $40+
Intermediate iOS Developer $45-60+
Intermediate Android Developer  $30 - $50+
Sr. iOS Developers $75+
Sr. Android Developers $60+

Based on the average calculation and estimation, you can hire developers from California for your projects.

The costs of developing a mobile app in California will be anywhere between $20,000 to $350,000+, depending on the type of application, developers’ experience, team size, app complexity, and more.

If you are developing a standard mobile application, you can calculate the hours it takes to develop a standard application. Here's the average cost for building mobile applications according to their type;

Mobile App Type Development Costs
Simple app $20,000 - $25,000
Medium complexity app $50,000 - $100,000
Complex app $100,000 to $350,000+

 

A good mobile development company in California has a business analysis team that carries out intensive research and analysis and creates effective mobile app launching strategies. It can be;

  • Researching the market
  • Selecting the right time
  • Choosing the right platform
  • Initiating the pre-launch marketing campaign
  • Creating app launching kit
  • Keeping a close watch on an app on the platform
  • Testing among real users before the final release
  • Create a smooth onboarding guide
  • Crate detailed documents
  • Creating user manuals (if required)

They are open to any communication channel that the client suggests, though they use Slack, Microsoft Teams, Skype, Zoom, etc., for internal and external communication. Apart from this, they also use Trello, Asana, and Ryver for other collaborations.

Do check with your development partner to ensure they are available on your preferred communication channel.

California-based mobile app development companies offer services across various industries, including healthcare, real estate, entertainment, gaming, food & beverages, hospitality, e-commerce, farming, finance, and banking. While these are common sectors, it's essential to consult with specific companies to discuss their expertise and experience in your particular industry.

Yes, they do. Californian mobile app developers and companies offer customized mobile app development solution that caters to your specific business and project needs. However, the quality outcomes will depend on the type of developers with specific skills, experience, and technical knowledge they possess. Hire the team after making an inquiry and checking if the team has relevant skills and experience to meet your project expectations.

Mobile app scalability is essential for businesses aiming to grow or expecting increased app usage over time. Californian mobile app developers integrate scalability strategies early in the development process to ensure apps can handle more users, additional features, and larger datasets without sacrificing performance. To achieve this, they focus on choosing the right technology stack, leveraging cloud infrastructure for dynamic scaling, implementing modular and microservices architecture, optimizing code for efficiency, and designing flexible user interfaces that can adapt to evolving requirements. Additionally, app developers monitor user behavior to make data-driven adjustments, ensuring the app stays efficient as it scales.

  • Utilize cloud infrastructure: Leveraging cloud platforms like AWS, Google Cloud, or Microsoft Azure enables apps to easily scale based on demand without needing physical infrastructure changes.
  • Implement modular architecture: They design apps with modular components, making it easier to add new features or update existing ones without disrupting the entire system.
  • Database optimization: Scalable apps often rely on databases like MongoDB or Cassandra, which support large data volumes and can be distributed across multiple servers.
  • Load balancing and microservices: Ensuring that the app can efficiently distribute traffic among servers prevents performance slowdowns as user traffic increases.

By focusing on these technical aspects, Californian mobile app developers ensure that your app can handle future user growth without compromising performance or stability.

Mobile app developers in California commonly use a variety of project management software like Asana, Jira, Trello, and slack to streamline workflows, improve collaboration, and ensure timely delivery. These tools are selected based on the specific needs of the project. Popular ones include:

  • Jira: Widely used for agile project management, Jira allows teams to track tasks, sprints, and deadlines efficiently.
  • Trello: Known for its simplicity, Trello is used by smaller teams to organize tasks visually through boards and lists.
  • Asana: Ideal for teams that need to manage complex projects with multiple tasks and dependencies, Asana offers an intuitive interface for task tracking.
  • Slack: While primarily a communication tool, Slack integrates with other project management software to keep teams updated on task progress.

These tools help developers coordinate with clients, manage tasks, and deliver high-quality apps within set timelines.

Yes, most mobile app development companies in California offer integration services to ensure your new app works seamlessly with existing systems. Whether it’s a CRM, ERP, or other third-party software, developers prioritize making sure that your app can communicate efficiently with your current infrastructure.

API Development: App developers build and customize APIs that connect your app with databases, cloud services, or other software tools.

Third-Party Software Integration: Whether you use Salesforce, Microsoft Dynamics, or any other platform, developers ensure smooth interaction between your new app and these systems.

Custom Middleware: For complex integrations, developers may create middleware that allows different systems to communicate effectively without compromising performance.

By offering integration services, developers in California help businesses enhance productivity and streamline processes.

Yes, they do. Mobile app development companies in California provide services globally and work according to the client's time zone. In most cases, they have a dedicated mobile app development team who are available to address the client's grievances according to their time zones. Even if you want to hire dedicated Android or iOS developers for your projects, they are available according to your time zone. Confirm with your technology partner, as there may be some companies (particularly those who do not provide services globally) that may not offer time-zone flexibility.




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