Best US Cross-Platform App Development Companies

6 Companies - Rankings updated: September 03, 2026

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

United States × Cross-Platform Mobile App Development × Home & Garden × Under $1,000 × Clear Filters
  • Empowering Your Digital Future with Innovative IT Solutions

    At Quantum IT Innovation, our team excels in AI, Big Data, RPA, and Mobile App Development for iOS, Android, and Cross-Platform. We also offer expert SEO, PPC, and Social Media services to drive your business forward in the USA, UK, Canada, Ireland, UAE, Australia, India, & across the globe...

    Top Services:

    • Web Development
    • Social Media Marketing
    • SEO
    • PPC
    • IT Services
    • Show more
    Location
    Indianapolis, Indiana
    Number of Employees
    100 - 249
    Average Hourly Rate
    $10/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    101 Projects Listed

    Quantum IT Innovation Services

    • Web Development
    • Social Media Marketing
    • SEO
    • PPC
    • IT Services
    • Mobile App Development
    • AI Development
    • Digital Marketing
    • Software Development
    • Web Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • David
    • Karmel
    • Jevon
    • Luke
    • Rajitha
    • Alfred
    • Gilbert
    • Erik
    • Christopher Samdeo
    • Mehernaz Emadi
    Data sourced from the agency's DesignRush profile

    Quantum IT Innovation Reviews & Testimonials

    • Lorena Iaut
      Lorena Iaut Obstetrician and Gynecologist at Lorena Laut
      5.0

      Digital Marketing Review from Lorena Iaut

      We have had a great experience working with Quantum IT Innovation for our digital marketing needs. Their team is professional, responsive, and truly understands how to position a healthcare brand effectively online. We've seen noticeable improvement in our digital presence and engagement. Highly recommend their services to anyone looking for reliable and result-driven marketing support.

    • Brigitte Brünjes
      Brigitte Brünjes Owner at Hogasearch
      5.0

      Digital Marketing Review from Brigitte Brünjes

      Quantum IT Innovation played a key role in strengthening HOGASEARCHs digital presence through strategic digital marketing and SEO services. Their team delivered creative content, consistent planning, and visible growth in engagement and search rankings. Highly professional and results-oriented.

    • SAM NAJIBI
      SAM NAJIBI CEO at MBSS Security Services
      5.0

      Digital Marketing Review from SAM NAJIBI

      Quantum IT Innovation has been a game-changer for MBSS Security. Their digital marketing strategies helped us boost our local visibility, generate leads, and build a strong online presence. Highly professional and results-driven team truly appreciate their support!

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Catalyzing Innovation and Smart Digital Solutions.

    Apptalyst is a software development and digital marketing company. Our team is as wise as tree full of owls and we take great pride in proving our mettle in the services we offer. We strive to serve individuals, small businesses and corporations alike...

    Top Services:

    • Mobile App Development
    • Digital Marketing
    • SEO
    • Graphic Design
    • Web Design
    • Show more
    Location
    Great Falls, Virginia
    Number of Employees
    Under 49
    Average Hourly Rate
    $35/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    3 Projects Listed

    Apptalyst Services

    • Mobile App Development
    • Digital Marketing
    • SEO
    • Graphic Design
    • Web Design
    • UI/UX Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • eCommerce Industry
    • Education Industry
    • Fashion Industry
    Data sourced from the agency's DesignRush profile
  • Delivering Solutions

    World Web Technology is a trusted WordPress development company offering comprehensive services in website design, development, and digital marketing. With a team of skilled professionals and a customer-centric approach, they deliver cutting-edge solutions that help businesses establish a strong online...

    Top Services:

    • Web Design
    • Web Development
    • eCommerce Development
    • VR/AR
    • Mobile App Development
    • Show more
    Location
    Dover, Delaware
    Number of Employees
    50 - 99
    Average Hourly Rate
    $15/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    8 Projects Listed

    World Web Technology Services

    • Web Design
    • Web Development
    • eCommerce Development
    • VR/AR
    • Mobile App Development
    • Market Research
    • Digital Marketing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Chris Luescher
    • Ignacio Aragoneses
    • Vito Parisi
    • Vincenzo Federico
    Data sourced from the agency's DesignRush profile

    World Web Technology Reviews & Testimonials

    • Sohil Prajapati
      Sohil Prajapati Review from Google
      5.0

      Sohil Prajapati's Review Sourced from Google

      I recently had the opportunity to interview with World Web Technology, and although I wasn't selected this time, I genuinely had a great experience throughout the process. The HR team was extremely professional, kind, and supportive. All three rounds of the interview were well-organized and gave me a clear understanding of the company's culture and work environment.

    • kiri aakash
      kiri aakash Review from Google
      1.0

      kiri aakash's Review Sourced from Google

      I gave 3 rounds of interview there.I never got a message or call back for the result..I asked by calling to HR neera soni but just a vague answer saying 'its on hold' & they never provided feedback as well. I will not recommend this kind of arrogant-ignorant HRs. stay away.

    • vijay patel
      vijay patel Review from Google
      5.0

      vijay patel's Review Sourced from Google

      It is truly an amazing experience working here for the past 3.5 years. As a Linux/AWS Administrator, I have had the opportunity to gain invaluable professional skills and expertise. The CEO of the company, Mr. Sanjay Ghinaiya, has a refreshingly open-minded approach towards adopting new technologies and ensures that the best facilities are provided to all employees in the workplace. The company fosters a fun-loving environment, making it a great place to grow both personally and professionally. I genuinely appreciate the company's commitment to maintaining a healthy work-life balance, as it has been instrumental in keeping me motivated and fully engaged in my role. Overall, I can confidently say that this is a company that cares deeply about its employees and provides an excellent platform for career development and growth.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Innovate, Inform & Inspire

    Descom Softwares is a Bhubaneswar-based IT company offering web design, mobile apps, digital marketing, and custom software solutions with on-time delivery. Comprehensive services to boost your online presence and drive business growth...

    Top Services:

    • SEO
    • Digital Marketing
    • PPC
    • Email Marketing
    • Web Design
    • Show more
    Location
    Bartlett, Illinois
    Number of Employees
    Under 49
    Average Hourly Rate
    $30/hr
    Minimal Budget
    Under $1,000

    Descom Softwares Pvt. Ltd. Services

    • SEO
    • Digital Marketing
    • PPC
    • Email Marketing
    • Web Design
    • Web Development
    • Mobile App Development
    • Managed Services
    • Social Media Marketing
    • eCommerce Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Jimmy Fox Mens Shirts
    • Gmart Inc.
    • Fine Crops
    • Modern Engineering & Management Studies
    • Gandhi Institute Of Technology And Management
    • Black-r Store
    • Sandals Luxury Pools
    • Parrot Bay Homes
    • Evergeen Landscaping
    • Elite Pools
    Data sourced from the agency's DesignRush profile
  • 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

    Trifleck Services

    • Digital Services
    • Graphic Design
    • Design Services
    • eCommerce Development
    • Web Development
    • UI/UX Design
    • Software Development
    • Mobile App Development
    • AI Development
    • ERP Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Vareon
    • Kryntavo Commerce Labs
    • Finmora Lending Network
    • Avelyron
    Data sourced from the agency's DesignRush profile

    Trifleck Reviews & Testimonials

    • Iker Edwards
      Iker Edwards Review from Google
      5.0

      Iker Edwards's Review Sourced from Google

      Trifleck’s support team was extremely helpful. Patiently listened to my concerns and questions and made sure I understood everything. They even asked for my approval about every minor step.

    • Jhon Aimy
      Jhon Aimy Review from Google
      5.0

      Jhon Aimy's Review Sourced from Google

      Got our mobile app built by Trifleck and yeah it runs smooth. No random crashes anymore which was a big issue before. Users actually stay on it now

    • john jony
      john jony Review from Google
      5.0

      john jony's Review Sourced from Google

      Really solid team. We had a messy vision for a mobile game and Trifleck helped turn it into a finished game end to end. Beta phase was not painful (which is rare lol) and they kept refining stuff till it felt right. It hit the stores and somehow people liked it so we will take that. Would work with them again for sure.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Crafting Digital Echoes.

    Nobox Idea delivers exceptional digital solutions with a focus on web design, development, and maintenance. Our services extend to custom software and app development, ensuring tailored solutions for your needs. We specialize in SEO to enhance your online visibility and offer strategic social media marketing...

    Top Services:

    • Web Design
    • Web Development
    • Mobile App Development
    • Software Development
    • Graphic Design
    • Show more
    Location
    Naperville, Illinois
    Number of Employees
    Under 49
    Average Hourly Rate
    $30/hr
    Minimal Budget
    Under $1,000

    Noboxidea Services

    • Web Design
    • Web Development
    • Mobile App Development
    • Software Development
    • Graphic Design
    • SEO
    • Email Marketing
    • Digital Marketing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • The Medicator's
    • Med-Miles
    • Cleveland Psychiatry Associates
    • Apex Home Warranty
    • Leader Automotive
    • Axe Auto Transport
    • Axe Marketing
    Data sourced from the agency's DesignRush profile

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