Best US Cross-Platform App Development Companies

66 Companies - Rankings updated: September 03, 2026

We evaluate every agency on DesignRush according to expertise credentials and client satisfaction ratings. Some placements are sponsored.

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  • AlphaSquad Technologies

    We Elevate Brands From Good to Great.

    At AlphaSquad Technologies, we transcend mere development to craft transformative digital experiences. With unmatched proficiency in Web Development and Mobile Application Development, we pave the way toward an innovative, digitally evolved landscape. Our specialization lies in pioneering Website Design...

    Top Services:

    • Mobile App Development
    • Digital Services
    • Product Design
    • Web Design
    • UI/UX Design
    • Show more
    Location
    San Francisco, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    Visit Website View Profile

  • 9mills

    Build. Grow. Automate.

    9MILLS helps businesses build, automate, and grow through custom software development, AI automation, web and mobile apps, and performance-driven growth systems designed to improve efficiency, visibility, and business results...

    Top Services:

    • AI Development
    • Mobile App Development
    • Software Development
    • Web Design
    • Web Development
    • Show more
    Location
    Austin, Texas
    Number of Employees
    Under 49
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    2 Projects Listed
    Visit Website View Profile

  • Fishermen Labs

    Top Augmented Reality & Virtual Reality Agency

    An Immersive Media Agency specializing in the development of Extended Reality (XR, AR, VR, MR) experiences driving meaningful connections between brands & consumers. Our global team of skilled designers, artists, and developers craft creative narratives & experiences powered by emerging tech...

    Top Services:

    • VR/AR
    • Web Development
    • Mobile App Development
    • Product Design
    • Web Design
    • Show more
    Location
    Culver City, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $200/hr
    Minimal Budget
    $10,000 - $25,000
    Visit Website View Profile

  • Trifleck

    Smart Digital Solutions

    Trifleck is a digital product development and technology consulting company that helps businesses build and scale digital systems, including apps, software platforms, websites, AI solutions, automation workflows, branding, and growth marketing initiatives...

    Top Services:

    • Digital Services
    • Graphic Design
    • Design Services
    • eCommerce Development
    • Web Development
    • Show more
    Location
    Winter Park, Florida
    Number of Employees
    50 - 99
    Average Hourly Rate
    $25/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    1 Project Listed
    Visit Website View Profile
    4.9 4.9 (9)

  • Ardubs

    We build beautiful things.

    We are a design and development house that prides itself on extraordinary output. We design and build beautiful, high-performance products for inspired brands. From concept to deployment, we partner with clients to deliver solutions that solve problems and users fall in love with...

    Top Services:

    • Digital Services
    • Mobile App Development
    • UI/UX Design
    • Digital Strategy
    • Digital Marketing
    • Show more
    Location
    Tucson, Arizona
    Number of Employees
    Under 49
    Average Hourly Rate
    $80/hr
    Minimal Budget
    $1,000 - $10,000
    Visit Website View Profile

  • Softrizon LLC

    We Help You Build Your Software Projects Your Way.

    Expert software developers delivering top-tier web and mobile apps for startups and SMBs. With diverse industry experience spanning e-commerce, fintech, online dating, media, and travel, we bring a wealth of expertise to every project...

    Top Services:

    • Staff Augmentation
    • Mobile App Development
    • Software Development
    • Software Testing
    • Web Development
    • Show more
    Location
    St. Petersburg, Florida
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Visit Website View Profile

  • Nooera

    Nooera of Digital Innovation.

    At Nooera, we build solutions that customers, teams and investors will love. Entrepreneurs and business choose Nooera to bring ideas to life and generate real-world impact. We specialize in building apps, AI agents, websites, brands and ads. Work with us to step into a "new era" of your business in 2024!...

    Top Services:

    • Mobile App Development
    • Web Development
    • AI Development
    • Web Design
    • Digital Services
    • Show more
    Location
    Seattle, Washington
    Number of Employees
    Under 49
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $10,000 - $25,000
    Visit Website View Profile

  • Teletab

    Growth For Apps That Want To Scale Smarter

    Teletab is a full-service app marketing agency helping startups and top apps grow smarter through AI SEO, creative performance, and data-driven strategy. We specialize in app store optimization (ASO), AI SEO, influencer marketing, performance marketing, paid media, and creative testing that scales installs...

    Top Services:

    • Digital Marketing
    • Mobile App Development
    • Web Design
    • UI/UX Design
    • Cloud Consulting
    • Show more
    Location
    New York City, New York
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $10,000 - $25,000
    Visit Website View Profile

  • The Praetors

    Your Ideas, Our Expertise: Infinite Possibilities.

    At The Praetors, we transcend mere developmentwe innovate. Specializing in mobile app development, we harness cutting-edge technologies to craft seamless, user-centric experiences that captivate and convert. Collaborate with us to stay ahead of the curve in today's fast-paced digital landscape...

    Top Services:

    • Web Design
    • Web Development
    • eCommerce Development
    • Mobile App Development
    • Software Development
    • Show more
    Location
    Selden, New York
    Number of Employees
    100 - 249
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $1,000 - $10,000
    Visit Website View Profile
    5.0 5.0 (4)

  • Tafsol Technologies

    #1 Reliable Digital Agency

    #1 Reliable Digital Agency. The world's most efficient digital marketing agency, providing a wide range of exclusive services. Tafol Technologies is ranked as one of the best digital marketing agencies in Asia...

    Top Services:

    • AI Development
    • Software Development
    • Blockchain
    • Mobile App Development
    • IT Services
    • Show more
    Location
    Sheridan, Wyoming
    Number of Employees
    100 - 249
    Average Hourly Rate
    $45/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    5 Projects Listed
    Visit Website View Profile
    4.5 4.5 (111)

  • AppsLogic

    The App Experts of the Middle East.

    AppsLogic is a premier mobile app development and web design company in Dubai, UAE, delivering innovative digital solutions. With a focus on user-centric designs and cutting-edge technology, AppsLogic transforms ideas into seamless, high-performing apps and websites, driving success for businesses...

    Top Services:

    • Mobile App Development
    • Web Design
    • eCommerce Development
    • Web Development
    • Software Development
    • Show more
    Location
    Rutherford, New Jersey
    Number of Employees
    50 - 99
    Average Hourly Rate
    $15/hr
    Minimal Budget
    $1,000 - $10,000
    Visit Website View Profile
    5.0 5.0 (3)

  • The Demski Group

    Passionate Developers

    The Demski Group is a full-stack mobile and web development firm that creates beautiful, engaging, state-of-the-art applications and designs to help businesses grow and succeed...

    Top Services:

    • Mobile App Development
    • Software Development
    • IoT
    • AI Development
    • VR/AR
    • Show more
    Location
    Olean, New York
    Number of Employees
    Under 49
    Average Hourly Rate
    $80/hr
    Minimal Budget
    $1,000 - $10,000
    Visit Website View Profile
    5.0 5.0 (21)

  • Meticul Solutions

    Meticulous Innovative Development

    At Meticul Solutions, we know how to help you define where you are going, and give you the tools to get there. We do this with a simple philosophy: We just don't design & develop applications for your requirements but rather make sure to understand your business to give you an end to end digital...

    Top Services:

    • Software Development
    • Mobile App Development
    • AI Development
    • eCommerce Development
    • UI/UX Design
    • Show more
    Location
    Houston, Texas
    Number of Employees
    50 - 99
    Average Hourly Rate
    $36/hr
    Minimal Budget
    $10,000 - $25,000
    Visit Website View Profile

  • RSunBeat Software

    Your Vision, Our Innovation Together, We Build the Future.

    RSunBeat Software is a globally trusted leader in mobile app development, serving businesses in the USA, UK, Australia, Italy, Dubai, Brazil, and more. We design innovative, high-quality apps that boost growth, elevate user experiences, and turn ideas into powerful digital solutions...

    Top Services:

    • Web Development
    • UI/UX Design
    • Mobile App Development
    • Digital Marketing
    • Blockchain
    • Show more
    Location
    California City, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $15/hr
    Minimal Budget
    $1,000 - $10,000
    Visit Website View Profile

  • Techechelons

    Driving Next Generation Innovation.

    Techechelons provides expert digital solutions in DevOps, Mobile & Web, Startup Services, eCommerce, Staff Augmentation, and more, leveraging over 12 years of experience to empower client success. With our comprehensive suite of services, we ensure that your digital needs are met efficiently and effectively...

    Top Services:

    • Mobile App Development
    • Web Development
    • eCommerce Development
    • WordPress Website Design
    • Software Development
    • Show more
    Location
    McLean, Virginia
    Number of Employees
    Under 49
    Average Hourly Rate
    $45/hr
    Minimal Budget
    $10,000 - $25,000
    Visit Website View Profile
    4.7 4.7 (30)

  • iCode49 Technolabs

    4 Steps to Cloud 9

    iCode49 Technolabs stands out as a premier provider specializing in the meticulous development of cutting-edge iOS and Android mobile applications uniquely crafted for both startups and global brands. Our expertise lies in driving innovation within the ever-evolving mobile landscape, where we leverage our...

    Top Services:

    • Mobile App Development
    • Software Development
    • Web Development
    • WordPress Website Design
    • eCommerce Development
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $20/hr
    Minimal Budget
    $10,000 - $25,000
    Visit Website View Profile
    5.0 5.0 (12)

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