Best US Cross-Platform App Development Companies

1,017 Companies - Rankings updated: March 31, 2026

All agencies are evaluated on DesignRush for demonstrated expertise and authentic client reviews to support your decision. Certain placements are paid.

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  • CONTUS Tech

    Your Digital Growth Success Partner.

    Your Digital Growth Success Partner.

    CONTUS Tech stands as a prominent global authority in digital engineering services, heralded for its transformative impact on businesses worldwide. Our forte lies in crafting cutting-edge digital products, pioneering connected vehicle experiences, and spearheading next-generation streaming services that  [... view CONTUS Tech profile ]
    Location
    Santa Clara, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $25,000 - $50,000
    View Profile
    4.0 4.0 (314)

  • Budventure Technologies Pvt Ltd

    Build Bold. Grow Smart. Power Your Brand with Web, Mobile & AR/VR Solutions

    Build Bold. Grow Smart. Power Your Brand with Web, Mobile & AR/VR Solutions

    Custom solutions, personal touchwe deliver digital success with precision, passion, and performance-driven growth across industries!  [... view Budventure Technologies Pvt Ltd profile ]
    Location
    Edison, New Jersey
    Number of Employees
    Under 49
    Average Hourly Rate
    $20/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    1 Project Listed
    View Profile
    4.9 4.9 (116)

  • Plaxo Technologies

    Design, Innovate, Grow.

    Design, Innovate, Grow.

    Plaxo Technologies is a leading provider of mobile app, digital marketing, website design, and development services. Plaxo Technologies drives digital transformation through tailored strategies, innovative technologies, and expert guidance. We empower businesses to modernize, automate, and scale for long-term  [... view Plaxo Technologies profile ]
    Location
    Bonita Springs, Florida
    Number of Employees
    Under 49
    Average Hourly Rate
    $10/hr
    Minimal Budget
    Under $1,000
    View Profile
    5.0 5.0 (2)

  • Fourchain Technologies Private Limited

    Redefine your Business Growth with Fourchain Technologies.

    Redefine your Business Growth with Fourchain Technologies.

    At Fourchain, we specialize in modernizing businesses by offering comprehensive digital transformation solutions like blockchain, artificial intelligence, fintech and application development services, all tailored to meet the specific pain points and unique needs of startups, mid-size, and enterprise  [... view Fourchain Technologies Private Limited profile ]
    Location
    Ontario, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile
    5.0 5.0 (21)

  • RojrzTech

    Design Develop Deliver.

    Design Develop Deliver.

    At RojrzTech. We're your partners in digital excellence. From stunning websites to powerful apps, captivating designs to top-notch SEO and SMM, we've got you covered. Lets make your online presence unforgettable.  [... view RojrzTech profile ]
    Location
    Austin, Texas
    Number of Employees
    Under 49
    Average Hourly Rate
    $15/hr
    Minimal Budget
    Under $1,000
    View Profile
    4.7 4.7 (18)

  • Infysion Technologies

    Your Reliable Product Engineering Services & Digital Transformation Partner

    Your Reliable Product Engineering Services & Digital Transformation Partner

    At Infysion, we're your trusted product engineering company, offering comprehensive product engineering services and solutions. We excel in the software product engineering field, employing an agile product development process to turn innovative ideas into successful, market-ready products.  [... view Infysion Technologies profile ]
    Location
    Springfield, New Jersey
    Number of Employees
    Under 49
    View Profile
    5.0 5.0 (42)

  • RobLinx Infotech LLP

    Navigating The Path For Digital Transformation!

    Navigating The Path For Digital Transformation!

    RobLinx is an esteemed tech company based in Ahmedabad, Gujarat, known for its excellence in web development, cloud-based software development, and commitment to client success  [... view RobLinx Infotech LLP profile ]
    Location
    Seattle, Washington
    Number of Employees
    Under 49
    View Profile
    5.0 5.0 (9)

  • iTech India

    Powering Global Business with Innovative Solutions.

    Powering Global Business with Innovative Solutions.

    iTech is a custom software and digital transformation company with a wide range of successful projects. We offer tailored solutions for small businesses and multi-platform systems for large companies. Trusted by global brands, including Fortune 500 companies.  [... view ITech India profile ]
    Location
    Addison, Texas
    Number of Employees
    250 - 499
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile
    3.9 3.9 (137)

  • Frugalnova Innovation

    Frugalnova - Crafting Smarter Software, Apps, and Innovations for All Platforms!

    Frugalnova - Crafting Smarter Software, Apps, and Innovations for All Platforms!

    Frugalnova is a leading software development company specializing in creating innovative solutions for businesses worldwide. We excel in mobile app development, iOS and Windows apps, web platforms, and cutting-edge technology solutions. Our expert team blends creativity and technical expertise to deliver  [... view Frugalnova Innovation profile ]
    Location
    Mount Vernon, Illinois
    Number of Employees
    Under 49
    Average Hourly Rate
    $100/hr
    Minimal Budget
    Under $1,000
    View Profile
    3.5 3.5 (4)

  • PODS365 INC

    Coding A Better Future

    Coding A Better Future

    PODS365 Ñ–Ñ• a digital agency involved Ñ–n serving companies wÑ–th thеіr digital аnd design nееdÑ•. Wе provide high-quality solutions tо individuals, companies, аnd brands whо wаnt tо expand thеіr existing efforts using technology аnd thе Internet tо achieve a bеttеr digital presence.  [... view PODS365 INC profile ]
    Location
    St. Paul, Minnesota
    Number of Employees
    50 - 99
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile

  • Agnito Technologies Pvt. Ltd.

    Empowering startups, enterprises, and iGaming ventures

    Empowering startups, enterprises, and iGaming ventures

    Agnito Technologies Pvt. Ltd. is a full-service IT and digital marketing company delivering innovative solutions in web & mobile app development, game development, and online growth strategies. From SEO and social media to cutting-edge software, we help businesses scale and succeed in the digital world.  [... view Agnito Technologies Pvt. Ltd. profile ]
    Location
    Wilmington, Delaware
    Number of Employees
    Under 49
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $10,000 - $25,000
    View Profile

  • Claritus Consulting

    Powering Innovation. Enabling Change.

    Powering Innovation. Enabling Change.

    From design to deployment, Claritus delivers secure, scalable, and user-friendly applications backed by 24/7 support.  [... view Claritus Consulting profile ]
    Location
    New York City, New York
    Number of Employees
    100 - 249
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $10,000 - $25,000
    View Profile
    4.1 4.1 (88)

  • Invoxico Technologies

    Crafting Websites, Creating Success!

    Crafting Websites, Creating Success!

    Invoxico Technologies is an adept company in web design and development, acknowledged for its proficiency in crafting customized digital solutions. Their expert team focuses on UI/UX design, web development, CMS development, eCommerce solutions, and mobile app development, and offers a complete range of  [... view Invoxico Technologies profile ]
    Location
    La Puente, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile
    5.0 5.0 (10)

  • Devout Tech Consultants

    Best Top-Rated Website & Mobile App Development Company.

    Best Top-Rated Website & Mobile App Development Company.

    We are an innovative, top-rated Website, Mobile &software development company specialising in the creation and design of web-based applications, websites, and mobile solutions (iOS, Android, React Native, and hybrid). Our primary expertise lies in collaborating closely with clients to transform their ideas  [... view Devout Tech Consultants profile ]
    Location
    Waterloo, Iowa
    Number of Employees
    50 - 99
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile

  • iNFOTYKE

    App Development, Web Design, SEO, Digital Marketing & IT Consulting Since 2010

    App Development, Web Design, SEO, Digital Marketing & IT Consulting Since 2010

    Infotyke Empowering Businesses with TechnologyInfotyke is a full-service technology agency specializing in custom software development, web & mobile app solutions, and digital marketing. With over a decade of experience, we help businesses across industries leverage cutting-edge technology to driv  [... view INFOTYKE profile ]
    Location
    Indianapolis, Indiana
    Number of Employees
    Under 49
    Average Hourly Rate
    $24/hr
    View Profile
    4.9 4.9 (99)

  • Antino Labs

    Values by Convergence

    Values by Convergence

    We are an AI Consulting and Digital Transformation company that follows a collaborative and data-driven approach to deliver high-quality technology solutions for global enterprises.  [... view Antino Labs profile ]
    Location
    Lewes, Delaware
    Number of Employees
    500 - 999
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    View Profile
    4.6 4.6 (68)

  • TST Technology

    Your Trusted IT Consulting Company for Business Success.

    Your Trusted IT Consulting Company for Business Success.

    TST Technology is an IT consulting company that offers services such as UI/UX design, web and mobile app development, software development, and SaaS product development. They have completed over 40 projects across 15+ industries.  [... view TST Technology profile ]
    Location
    Los Angeles, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile
    5.0 5.0 (22)

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About The Author and Expert Reviewer

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Selina Garcia has authored 500+ articles and edited 50+ published books in economics, law, and history. Her 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.

Former Development Director

spotlight@designrush.com

Sergio is a technology leader with over six years of experience managing global teams and delivering projects across fintech, sportstech, and B2B platforms. At DesignRush, he drove product growth and development execution, building tools that speed up processes by 95% and cut costs by 35% while maintaining full uptime.

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