Mobile App Development Company California

Mobile App Development Services Deliver AI-driven mobile app solutions to transform your rustic business into a world of digital.
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Mobile App Development Company In California USA

USM Business Systems is a leading custom mobile apps development company in California, USA. Leveraging our 30 years of experience in the design and development of world-class and bugs-free software and mobile apps, we evolved as one of the fast-growing tech companies in California with an extreme focus on mobile apps and software development.

We are experts in providing high-performing and scalable mobile app development services and solutions for organizations and entrepreneurs. We offer native Android app development services, native iOS app development services, and cross-platform app development services.

We have pretty decent hands-on experience with every stage of the mobile app development lifecycle. From ideation, wireframing, and prototype design to development, deployment, and maintenance, the USM team well-interacts and works closely with clients to ensure that the app is developing as per their objectives and expectations.

USM stands forefront of innovation and builds mobile app solutions that tap the unique needs of our client business. By using modern and intelligent technologies, like Artificial Intelligent, Machine Learning, and Natural Language Processing techniques, our team of skilled mobile app developers delivers you the most advanced Android and iOS mobile apps that fuel your business growth.

We deliver software application development and mobile app development services to clients across California, USA - San Jose, San Francisco, Los Angeles, San Diego, Sacramento, Fresno, Oakland, Bakersfield, and many other cities in California.

Mobile App Development

Android App Development California

USM is one of the top custom Android mobile app development companies in California, USA. Our dedicated android application developers with deep knowledge of Java and Kotlin develop start-of-the-art android apps for your business. We build flawless android apps for smartphones, Android TV, tablets, and wearables.

USM develops Android apps for various devices:

  • Smart phones.
  • Android TV.
  • Tablets.
  • Wearables.
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iPhone/iOS App Development Company In California

We are recognized as California’s leading native iPhone/iOS app development agency with dedicated efforts and a portfolio of scalable app solutions. By blending technology expertise on Swift and Objective-C and dedication, we, as the best iOS application development company in California, USA, develop custom iPhone apps that ensure rich functionality and attractive layouts.

Technology stack we use for iPhone App Development

  • Tools: JSON, XCode, IOS virtual machine & IOS simulators.
  • Address book framework: Firebase, Alamofire & Fabric.
  • Languages: Swift & Objective C.
  • UX/UI: Adobe Photoshop, HTML5, CSS3,Adobe Illustrator, Adobe effects & Adobe XD.
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Blockchain app development

Blockchain App Development

We have Block chain industry experts to develop mobile apps for Android & IOS devices. We help our clients in reaching their requirements securely and safely.

Benefits of Blockchain App Development

  • Transparency
  • Reduce time and space
  • Automation
  • Flexibility
  • Data integrity & security
  • Trust
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Swift App Development

USM consists of topmost swift app developers in the USA. We have a proven track experience of building high-end iOS mobile apps to provide a top-quality user experience. We proposition high-end services to the clients based on their requirements and complexity levels.

Reasons to choose Swift App Development

  • Safe & secure.
  • Easy to maintain.
  • Swift is faster.
  • United memory management.
  • Compatibility & Interoperability.
  • Reduced code.
  • Faster updates.
  • Rapid development process.
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Cross-platform app development

Cross-Platform App

We branded as the best mobile application development company in California, the USA, with our unique strategy of sourcing the best app developers and reaching clients’ expectations. USM is a top cross-platform app development company in California, USA. We develop powerful cross-platform or hybrid apps using React NativeIonicFlutterPhoneGap, and Xamarin, HTML, JavaScript, and CSS to offer native-like experiences to your audience.

Technologies We Serve

  • Front-end: HTML, CSS, Angular, JScript, JQuery and  React.js
  • Back-end: Node.js, Python, PHP, Dot Net and Java
  • Database: MySQL, Firebase, RethinkDB, MongoDB, PostgreSQL
  • Web: Word press,  Ruby, Joomla, Node.JS, Laravel, CakePHP,, YII2, ZEND, Magento, Open Cart, Zen Cart, Prestashop and Golang.
  • JavaScript framework: Angular, React native, Jasmine.JS, Quorra.JS, Chai.JS, Mocha, Hapi.JS, Meteor and Vue.JS.
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Delivered Successful Projects

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Years of Experience

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Let’s talk About your project

Understanding your requirements and objectives is important to us. We listen and work together to create a truly unique experience.

Lets Start Work together!

    Our Mobile App Development Process

    A Proven Approach Will Be First Step Towards A Successful App Development

    As a leading custom mobile apps developer in California, USA, we are committed to delivering best-in-class applications on Android and iOS platforms. We merge your app idea and our years of application development expertise to develop apps loaded with customer-centric features and specifications.

    • 1

      Requirement Collection

      Primarily in this stage, we collect the requirements from the client/user. In the next step, our senior business analysts will analyze all the requirements. After analyzing, we propose an app solution.

    • 2

      UI/UX Design

      This phase begins with the development of the blueprint structure. Next, we drive on to wire framing of every screen of the app. After completion of wire framing, we design the UI/UX for providing high-end user experience.

    • 3


      After completion of the design part, the project shifts to the development team. In this phase, the team of developers will take care of the coding part. After completion of the development, it will be sent to the client for feedback.

    • 4


      Our QA engineers will take care of the screening of the app and they examined by the test engineers until its 100% bug-free app then sent for client for approval.

    • 5


      Now, your app project is ready to deploy in the app stores (iOS and Android) and the client’s server. The mobile app development is ready to use in the real-time world.

    • 6

      Support & Maintenance

      Our mobile application development company is very keen on support & maintenance.
      Our team is available 24*7 to help our clients.

    Our Clientele

    USM has earned reputation and respect from its client by delivering top-notch customized IT solutions. We have satisfied clients from all over the globe.

    Why USM For Your Mobile App Development Needs in California?

    USM Business Systems is an internationally recognized software and mobile apps development company headquartered in Chantilly, USA. Since our transformation as a technology-enabling company, we continue to provide budget-friendly and quality mobile application development services to enterprises.

    We have developed hundreds of mobile apps for startups & Fortune 500 companies located across Chantilly, Virginia, Frisco, Texas, California, and New York.

    • Two decades of mobile app development experience
    • State-of-the-art app development infrastructure
    • Hundreds of app developers and other technical resources
    • Thousands of successfully delivered mobile and web apps
    • Long-term collaboration and highly scalable development team
    • Clean deadlines and affordable app development price
    • 24*7 client support services
    Mobile App Development

    Top Mobile App Development Companies California

    Listing on top mobile app developers Is not Luck, It’s all about Hard work & Dedication!

    It’s a challenging task to hire a Mobile App Development Company in California when thousands of application development companies serve in the same niche across the state. Since we are in the same genre, we identified a few app development competitors in California. Here is the list of top mobile app development companies in California.

    Tapia Co, ArcTouch, CitrusBits, Clavax, iTechArt, and many more app development companies are on our list of competitors in California.

    But, our app development strategy in integrating mobile apps with the latest technologies Artificial Intelligence, Machine Learning, Blockchain, Augmented or Virtual Reality, and IoT made us a unique mobile apps development company in California.

    We create a comprehensive mobile app strategy for ensuring a clean app development process and develop android or iOS apps that drive your business performance in this digital era.

    Let’s Talk! Use our profound tech background to give life your app ideas!

    Looking To Hire Mobile App Developers In California?

    Are you looking to hire the best Mobile App Development Company in California, USA? You are in the right place now. Being a famous Mobile App Development Company California, USM is a perfect mobile apps development partner for enterprises who wish to offer stunning mobile app services to their targeted audience. We have a vast team of Android app developers and iPhone/iOS app developers who always try to adapt to modern mobile technologies.

    Our team of developers understands your business requirements and develops mobile applications that matter to reach your goals and help you stand in front of the digital competition.

    Let’s Talk About Your Project & Get A Free App Quote.

    Tools/Frameworks used for App Development

    We make your business stand out. Interested? Let's chat.

    Segments We Have Experience In

    USM helps accelerate innovation and gratify industry specific best practices to help run your core business efficiently.

    AI in Banking


    AI in Healthcare


    AI in Retail


    AI in Manufacture


    AI in eCommerce


    AI in Telecom

    Marketing & Sales

    AI in Marketing & Sales


    AI in Education


    We would love to add yours too!
    Let US Know Your Requirement

    Client testimonials

    Satisfied clients are the bedrock of any strong business and ours is no exception. Read our testimonials below.
    USM’s AI-powered solutions helped our C-level Executives to generate real-time reports and insights on operational activities performed across our various locations. They developed an AI-based virtual assistant that can learn and improve every business conversation automatically without manual effort.

    Telecommunications Giant


    USM optimized the capability of our m-learning applications. We achieved 40% increased students subscription. We are succeeding beyond our targeted boundaries with implementing USM’s AI solutions. Thanks to USM!

    BYJU’s, the Learning App

    Bangalore, India

    USM has delivered an incredible predictive analytics solution to us and made us a performance driven online retailer in India. Compared to prior financial years, we witnessed 50% of increased sales during the year.


    Bangalore, India

    We partnered with USM to fill a skill gap across our IT domains. New hires helped us to complete the major IT project we targeted within deadlines as promised to our clients.

    IT Company

    Dallas, USA


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