Best US Cross-Platform App Development Companies

6 Companies - Rankings updated: September 04, 2026

Every agency on DesignRush meets evaluation criteria around expertise and client feedback to empower informed choices. Some listings include paid partnerships.

United States × Cross-Platform Mobile App Development × HR × $25,000 - $50,000 × Clear Filters
  • Certified Experts, Patented Excellence

    Digis is a Software Development company with a team of 200+ professionals dedicated to Custom Development (Web & Mobile) and design. We have a wealth of experience across several industries, particularly in Education, Healthcare, Fintech, E-Commerce, Media & Entertainment, GIS and Automotive...

    Top Services:

    • Staff Augmentation
    • Web Design
    • Web Development
    • Mobile App Development
    • IT Services
    • Show more
    Location
    New York City, New York
    Number of Employees
    100 - 249
    Average Hourly Rate
    $39/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    22 Projects Listed

    Digis Services

    • Staff Augmentation
    • Web Design
    • Web Development
    • Mobile App Development
    • IT Services
    • Software Development
    • Managed Services
    • Cybersecurity
    • Product Design
    • UI/UX Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • BlaBlaCar
    • PWC
    • EDP
    • HubSpot
    • SKF.
    • Huma
    • Otoqi
    • ZEWAY
    Data sourced from the agency's DesignRush profile

    Digis Reviews & Testimonials

    • Wladimir Wolinski
      Wladimir Wolinski Project Manager at Seven Tips UG & Co. KG
      5.0

      UI/UX Design Review from Wladimir Wolinski

      Communication was smooth either through our teams communication channel or with the project manager via email. We were in daily contact with the UX/UI designer in form of dailies or when we had to clarify some questions. With the project manager, we had a short conversation every 2 weeks to clarify all possible questions. We personally love to work in a very process-oriented way. Because when we understand how to do something, we usually know how the end result can look like. With Digis, we also had the feeling that they knew what they were doing and how to do it. Every next step was planned from the beginning. If something didn't work in line with our processes, we could readjust it. We were basically satisfied with everything.

    • Michael Wilson
      Michael Wilson Co-Founder at Part Swap
      5.0

      Website Redesign Review from Michael Wilson

      Digis is redesigning our website to a magento based platform to migrate from a Wordpress based platform. Key deliverables include a full discovery document to determine and outline the scope of the work and the magento platform with custom development to fit our needs. Everything has been delivered on time. Danila our project manager has great communication and always responds in a timely manor. We always receive clear explanations and detailed time logs for the work that is done.

    • Gina Levy
      Gina Levy CEO at KindraConnect
      5.0

      Mobile App Development Review from Gina Levy

      Both the developer and tester have exceeded expectations. Their performance is excellent. Together they eliminated bugs, introduced new features, and ensured that the app is working without problems. Previously, we had many complaints in the app store. Since working with this developer and tester, these complaints about the app functioning and bugs have disappeared. The time zone different is sometimes challenging, since we are in California and they are in Europe.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Surf

    Award Winner Recipient of a Best Design Award for outstanding work.

    Mobile & Web Development Company

    Our commitment is to deliver exceptional App Development solutions that drive business growth. With over 13 years of experience, Surf crafts native and cross-platform apps tailored to your goals. Our extensive expertise ensures success in even the most complex projects, from strategy and design to launch and...

    Top Services:

    • Mobile App Development
    • Software Development
    • Web Development
    Location
    Wilmington, Delaware
    Number of Employees
    100 - 249
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    10 Projects Listed

    Surf Services

    • Mobile App Development
    • Software Development
    • Web Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Societe Generale
    • KFC
    • Burger King
    • Mars
    • The Home Depot
    • Dodo pizza
    • SAP
    • TAG
    • Twim
    • Henderson
    Data sourced from the agency's DesignRush profile

    Surf Reviews & Testimonials

    • Ann Jerovski
      Ann Jerovski Bussiness director at SAP
      5.0

      Mobile App Development Review from Ann Jerovski

      The goal was to create an AR application that helps third-party clients see the entire business process. The end deliverable was a success. Third-party clients were able to see the whole business process and decide if they needed solutions from the client. The communication with the client was smooth. Overall, the team made the corrections and implemented solutions to enhance the client's services.

    • Anne Diganova
      Anne Diganova Business director at Love Republic
      5.0

      Mobile App Development Review from Anne Diganova

      A women's clothing retailer hired Surf to assist in the development of their app. Thanks to Surf’s efforts, the client was able to release the app on Black Friday, saving 40% of their budget. The team was communicative, responsive, and professional throughout the engagement. They worked in a very organized way, taking into account all business needs.

    • David Dilson
      David Dilson Delivery manager at Perfume & Cosmetics Company
      5.0

      Mobile App Development Review from David Dilson

      Thanks to Surf's efforts, they successfully created a functional app. As a result, the volume of downloads was over 500 thousand with great ratings in the app store. Moreover, the conversion rates were excellent. Their communication skills and expertise in the industry stood out in the partnership.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Exaud

    Verified Verified by the DesignRush team for authenticity and credibility.

    Precise Software Solutions

    Exaud builds lasting relationships by delivering custom solutions for Fortune 1000s and global brands like Samsung, Google, and Audi. Market-leading insight positions us as the clear choice in digital innovation, with proven results across App Development and complex software projects...

    Top Services:

    • AI Development
    • IoT
    • Mobile App Development
    • Software Development
    • Wearables
    • Show more
    Location
    Houston, Texas
    Number of Employees
    50 - 99
    Average Hourly Rate
    $70/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    12 Projects Listed

    Exaud Services

    • AI Development
    • IoT
    • Mobile App Development
    • Software Development
    • Wearables
    • Blockchain
    • DevOps Consulting
    • Staff Augmentation
    • Cybersecurity
    • IT Compliance Solution
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Anoto
    • Samsung
    • NDrive
    • Blaupunkt
    • Audi
    • Essent
    • Facebook
    • Google
    • Nissan
    • Presto
    Data sourced from the agency's DesignRush profile

    Exaud Reviews & Testimonials

    • Dmitriy Ksendzovsky
      Dmitriy Ksendzovsky CEO at Software Consulting
      4.8

      Educational Review from Dmitriy Ksendzovsky

      I have had an positive experience working with Exaud on expanding and maintaining several software products. Our software consulting technology stack is quite wide, from embedded development to mobile game dev, making it challenging to find the right partner knowledgeable in a number of these areas. The Exaud team is professional, flexible and continues to provide the development expertise we require to fulfill our project needs on time and budget.

    • Stacy McCarthy
      Stacy McCarthy President at Learning Design Network, Inc.
      4.8

      Educational Review from Stacy McCarthy

      Learning Design Network has been providing expert learning programs for 20 years, helping nearly 1 million employees worldwide achieve professional success. COVID prompted us to digitalize our product and we chose Exaud as our technology partner. Together, we developed a comprehensive digital tool for customized training and effortless collaboration in a 3D digital environment. The platform leverages our expertise and Exaud's technical capabilities, delivering a high-quality user experience.

    • Tim Martin
      Tim Martin Software Architecture and Engineering at FS Studio
      5.0

      Enterprise Review from Tim Martin

      We have a very long history of working with Exuad, which in itself is about the best endorsement you can have. We have been working with them on projects for going on 10 years and they are our go to external dev team. Georg and team are not only very talented they are highly ethical. To me the later point is the most important, you can trust that they will provide high quality work and you can absolutely trust them on the business side.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • We design & develop web and mobile applications. Specializing in outsourcing and AI integration

    We are ready to build your project in the digital world. We will help you through the development process from initial analysis to successful launch. We design, build and launch digital products on mobile, web, and connected platforms...

    Top Services:

    • Software Development
    • AI Development
    • Staff Augmentation
    • Mobile App Development
    • CRM Consulting
    • Show more
    Location
    New York City, New York
    Number of Employees
    50 - 99
    Average Hourly Rate
    $79/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    2 Projects Listed

    Moravio Services

    • Software Development
    • AI Development
    • Staff Augmentation
    • Mobile App Development
    • CRM Consulting
    • ERP Consulting
    • DevOps Consulting
    • Big Data Analytics
    • IT Services
    • Product Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • JLL
    • CENTRL
    • MALL
    • STARDIO
    • Delivery Hero
    • Notino
    • Wallmark
    • Hyundai Transys Czech
    • Czech Tourism
    • Economia
    Data sourced from the agency's DesignRush profile

    Moravio Reviews & Testimonials

    • James Leonard Ehrlich, DVM
      James Leonard Ehrlich, DVM CTO & CEO at VCPR.ORG
      4.8

      Web Development Review from James Leonard Ehrlich, DVM

      I wanted to outsource front end development while maintaining back end services myself. They started with existing React SPAs, cleaned them up, found and removed bugs, improved user interaction, made clear requests for new endpoints which I implemented and they tested and used. The time difference between my office in eastern USA and theirs in Moravia worked well, as we could meet at their afternoon/my morning and I had the rest of the day to deal with back end or questions they might have. Their professionalism and competency were impressive. I will continue working with them, for years, I hope, in maintenance mode or when we need to expand features.

    • Michal Konopa
      Michal Konopa Head of IT at NonStop Consulting
      5.0

      CRM Development Review from Michal Konopa

      New CRM system was successfully rolled out and data was migrated from our old system. Everything was delivered on time. Always willing to adapt to changing needs of the project.

    • Miroslav Cina
      Miroslav Cina Review from Google
      5.0

      Miroslav Cina's Review Sourced from Google

      I had experience for few projects as QA manager and I need to say that Moravio is very progressive company in IT industry.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Your Vision Your Rules Your Win

    JetBase helps startups and enterprises transform bold ideas into scalable digital products. From MVPs to SaaS platforms, we build software that drives growth, strengthens retention, and delivers measurable business impact with clarity, speed, and long-term value...

    Top Services:

    • Software Development
    • eCommerce Development
    • Mobile App Development
    • Web Development
    • DevOps Consulting
    • Show more
    Location
    Sheridan, Wyoming
    Number of Employees
    Under 49
    Average Hourly Rate
    $45/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    9 Projects Listed

    JetBase Services

    • Software Development
    • eCommerce Development
    • Mobile App Development
    • Web Development
    • DevOps Consulting
    • UI/UX Design
    • Web Design
    • AI Development
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Energex
    • Quran Pro
    • Grapevine
    • Athan Pro
    Data sourced from the agency's DesignRush profile
  • End-to-end digital product design and engineering.

    End-to-end digital product design and engineering for enterprises and premium brands...

    Top Services:

    • Branding
    • Mobile App Development
    • Software Development
    • AI Development
    • Design Services
    • Show more
    Location
    New York City, New York
    Number of Employees
    Under 49
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    4 Projects Listed

    L+R Services

    • Branding
    • Mobile App Development
    • Software Development
    • AI Development
    • Design Services
    • UI/UX Design
    • Wearables
    • Web Development
    • Product Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Meta
    • The Estée Lauder Companies
    • OceanX
    • Hilton Worldwide
    • UNICEF
    • ATP Tour
    • Louis Vuitton
    • Amazon
    • GE
    • Footlocker
    Data sourced from the agency's DesignRush profile

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