Best US Cross-Platform App Development Companies

3 Companies - Rankings updated: September 03, 2026

Each agency listed on DesignRush is assessed for industry expertise and customer testimonials are evaluated in order to provide you with a vetted selection. Certain listings represent paid partnerships.

United States × Cross-Platform Mobile App Development × Supplements × $1,000 - $10,000 × Clear Filters
  • Your Satisfaction, Our concern

    Why Protocloud Technologies? Award Winner - TOP E-COMMERCE DEVELOPERS 2023 Award Winner - Top Web Development Companies 2023 Over the last 12 years, developed 800+ projects Worked with Brands Wayfair, United Rentals, & many more. 30-60 day Free maintenance period after Go-live...

    Top Services:

    • eCommerce Development
    • Web Design
    • WordPress Website Design
    • Design Services
    • Mobile App Development
    • Show more
    Location
    Stockbridge, Georgia
    Number of Employees
    50 - 99
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    38 Projects Listed

    Protocloud Technologies Services

    • eCommerce Development
    • Web Design
    • WordPress Website Design
    • Design Services
    • Mobile App Development
    • Web Development
    • Branding
    • Graphic Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Rigla
    • IT Factory
    • Brillianteers
    Data sourced from the agency's DesignRush profile

    Protocloud Technologies Reviews & Testimonials

    • David Marsa
      David Marsa Founder at Wellola
      5.0

      eCommerce Development Review from David Marsa

      The team was very easy to communicate with. They responded very quickly. We used both Skype and Upwork for communication, and shared files via drop box. Quick response, they never hesitated to answer questions and rework some aspects of the website.

    • brent hicks Vice president at chemfax
      5.0

      eCommerce Development Review from brent hicks

      The results are perfect, exactly what I requested. In fact, they even added design elements that I would have never thought of that made it perfect. All requested functionality was provided without any issues. Overall, they did a fantastic job.

    • Danika Dry Brand Coordinator at Clover & Cobbler
      5.0

      Web Development Review from Danika Dry

      The team was a pleasure to work with and produced a top-notch website with outstanding professionalism and efficiency! We re-launched our website with the hopes of developing a stronger brand identity, and Protocloud's recommendationswhich covered both brand strategy and the overall websitehelped us achieve that goal. Any business trying to improve their website will benefit from my recommendation of them!

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Result Driven Digital Marketing Agency that Thrives on Creating Visual Stories that Resonate.

    Our journey began with a passion for visual storytelling and a commitment to turning ideas into impactful designs. With a team of dedicated professionals, we've honed our skills to deliver exceptional results for our clients around the world...

    Top Services:

    • Branding
    • Web Design
    • eCommerce Development
    • Email Marketing
    • Digital Marketing
    • Show more
    Location
    DeLand, Florida
    Number of Employees
    Under 49
    Average Hourly Rate
    $75/hr
    Minimal Budget
    $1,000 - $10,000

    HOUSEINK Agency Services

    • Branding
    • Web Design
    • eCommerce Development
    • Email Marketing
    • Digital Marketing
    • SEO
    • Mobile App Development
    • Event Marketing
    • Content Marketing
    • Social Media Marketing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Element Matcha
    • Velvet Ice Cream
    • HOUSEINK Magazine
    • Baxterwilsxn.com
    Data sourced from the agency's DesignRush profile
  • Building Digital Solutions That Drive Growth

    At RelyxDigital, we bring technology, talent, and innovation together to build digital solutions that accelerate business growth. With a global mindset and a passion for excellence, we empower organizations to scale, evolve, and thrive in a fast-changing world...

    Top Services:

    • Web Development
    • Mobile App Development
    • eCommerce Development
    • AI Development
    • Show more
    Location
    Sanford, Florida
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    2 Projects Listed

    Relyx Digital Services

    • Web Development
    • Mobile App Development
    • eCommerce Development
    • AI Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • TwinkleBoo
    • The Elite System
    • Lebel 8
    Data sourced from the agency's DesignRush profile

Receive Free Proposals

For your project

1

Specify your budget, timeline and project requirements

2

Our experts curate a list of up to 5 most qualified candidate agencies

3

We connect you with them so you can choose the most suitable partner