Our industry experts identified the top-rated United States Windows app development companies that build fast and user-friendly applications for Windows devices. Compare listings by reviews, cost of services and team size to select the best partner for your needs!

Best United States Windows App Developers

6 Companies - Rankings updated: September 03, 2026

DesignRush evaluates each agency using expert assessment and client feedback to inform your choices. Some featured agencies have paid placements.

Windows
Software & IT Services
$25,000 - $50,000
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United States × Windows App Development × Software & IT Services × $25,000 - $50,000 × Clear Filters

  • Diffco

    Verified Verified by the DesignRush team for authenticity and credibility.

    Your trusted AI software development partner

    Diffco offers solutions that transform ideas into dynamic digital experiences. Precision and creativity combine seamlessly in our mobile innovation and software crafting solutions, delivering intuitive interfaces and robust functionality that elevate user engagement and business growth...

    Top Services:

    • AI Development
    • Software Development
    • Staff Augmentation
    • Mobile App Development
    • Web Development
    • Show more
    Location
    San Jose, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $110/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    31 Projects Listed

    Diffco Services

    • AI Development
    • Software Development
    • Staff Augmentation
    • Mobile App Development
    • Web Development
    • eCommerce Development
    • IoT
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Mars
    • Food Rocket
    • FlashGrid
    • Nokia
    • Instreamatic
    • Quire
    • Legionfarm
    • Latoken
    • Genius One
    • Shift
    Data sourced from the agency's DesignRush profile

    Diffco Reviews & Testimonials

    • Oleg Sotnikov
      Oleg Sotnikov CEO at AppMaster
      5.0 ★

      AI Development Review from Oleg Sotnikov

      Diffco built a complex, production-grade AI agentic system and backend for our client's fintech platform owning architecture, AI/ML components, and AI agents in a security- and compliance-sensitive environment. They delivered on time and within budget, communicated proactively, and operated like part of our own team, taking ownership and suggesting better solutions throughout. Deep AI/ML and senior backend expertise. We'd happily work with them again.

    • Julia Platova
      Julia Platova VP Strategic Partnerships at OVA Solutions
      5.0 ★

      Mobile App Development Review from Julia Platova

      We partnered with Diffco for a comprehensive software development project aimed at delivering a mobile application and backend system for our client. The goal was to create a seamless, secure, and scalable solution within a 4-month timeline and $50k-$200k budget. Diffcos team was highly professional from start to finish. They handled everything: UI/UX design, backend architecture, API integration, and deployment. After the launch, they continued to support us with maintenance and performance optimization. The application received positive feedback and has proven stable and scalable. Were highly satisfied with Diffcos expertise, commitment, and ability to deliver real results.

    • Max Shmatkov
      Max Shmatkov Manager at Centerligh
      5.0 ★

      Mobile App Development Review from Max Shmatkov

      As an advantage of working with this company I’d like to note that their Agile development method is amazing! Diffco earned my trust through such approach and the team’s professional attitude.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    5.0 5.0 (33)
    5.0 5.0 (24)

  • AccelOne

    Accelone Advancing What's Possible

    Embark on your digital transformation journey with AccelOne's Software Development delivery model, strategically designed for optimal outcomes. Initiate your digital transformation seamlessly through our comprehensive nearshore and US-based services...

    Top Services:

    • Software Development
    • Mobile App Development
    • Blockchain
    • UI/UX Design
    • eCommerce Development
    • Show more
    Location
    Seattle, Washington
    Number of Employees
    100 - 249
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    5 Projects Listed

    AccelOne Services

    • Software Development
    • Mobile App Development
    • Blockchain
    • UI/UX Design
    • eCommerce Development
    • Web Development
    • AI Development
    • Staff Augmentation
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • HSBC
    • Xapo
    • University of Washington
    • Pan American Energy SL
    • Cartoon Network
    Data sourced from the agency's DesignRush profile

    AccelOne Reviews & Testimonials

    • Gustavo Lemos
      Gustavo Lemos Review from Google
      5.0 ★

      Gustavo Lemos's Review Sourced from Google

      I've been working in AccelOne for several years already and it's an amazing place to work. Great people and a good variety of clients.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    4.2 4.2 (5)

  • Inument

    A Custom Software Development Company

    Inument is a custom software development company that specializes in providing tailored offshore IT staff augmentation, custom development, and seamless digital integration services...

    Top Services:

    • Web Design
    • Web Development
    • eCommerce Development
    • WordPress Website Design
    • Software Testing
    • Show more
    Location
    New York City, New York
    Number of Employees
    50 - 99
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $25,000 - $50,000

    Inument Services

    • Web Design
    • Web Development
    • eCommerce Development
    • WordPress Website Design
    • Software Testing
    • AI Development
    • Mobile App Development
    • Software Development
    • Staff Augmentation
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • AI Industry
    • Software & IT Services Industry
    • Corporate Services Industry
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

  • Kritikal Solution

    Translating Ideas & Research to Market

    KritiKal Solutions is a technology design house and holds 22+ years of experience in AI, Computer Vision, Software Applications, Cloud and Mobile-based Solutions, Embedded Systems, Generative AI and Large Language Models. We specialize in R&D, product engineering, and innovation services...

    Top Services:

    • AI Development
    • Software Development
    • Mobile App Development
    • IoT
    • IT Services
    • Show more
    Location
    Dallas, Texas
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    4 Projects Listed

    Kritikal Solution Services

    • AI Development
    • Software Development
    • Mobile App Development
    • IoT
    • IT Services
    • Wearables
    • HR Outsourcing
    • Staff Augmentation
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Vector USA
    • BYJU'S
    • P&G
    • Columbus
    • Continental
    • Honeywell
    • ITC
    • Stryker
    • G&D
    • University of Berkeley
    Data sourced from the agency's DesignRush profile

    Kritikal Solution Reviews & Testimonials

    • Aakriti Bhatnagar
      Aakriti Bhatnagar Review from Google
      5.0 ★

      Aakriti Bhatnagar's Review Sourced from Google

      Great place to work. Very good learning opportunity.Best place for freshers to learn and gain knowledge. Supportive and understanding colleagues.

    • Jobin John
      Jobin John Review from Google
      5.0 ★

      Jobin John's Review Sourced from Google

      One of the best aspects of working at KritiKal Solutions is the opportunity to collaborate with talented professionals across multiple domains. The company promotes a culture of innovation, knowledge sharing, and continuous improvement.

    • twinkle kumari
      twinkle kumari Review from Google
      5.0 ★

      twinkle kumari's Review Sourced from Google

      A great workplace that encourages continuous learning, teamwork, and professional growth. The management maintains an open-door policy, making it easy to share ideas and collaborate across all levels of the organization.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    5.0 5.0 (2)

  • Antino Labs

    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...

    Top Services:

    • Web Design
    • Mobile App Development
    • Software Development
    • Product Design
    • Graphic Design
    • Show more
    Location
    Lewes, Delaware
    Number of Employees
    500 - 999
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000

    Antino Labs Services

    • Web Design
    • Mobile App Development
    • Software Development
    • Product Design
    • Graphic Design
    • Digital Services
    • Logo Design
    • AI Development
    • Blockchain
    • Digital Strategy
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Ontic
    • Rapido
    • Hyderabad Metro Rail
    • Krishify
    • Hoppy
    Data sourced from the agency's DesignRush profile

    Antino Labs Reviews & Testimonials

    • sudeep kotari
      sudeep kotari Review from Google
      5.0 ★

      sudeep kotari's Review Sourced from Google

      Recently I cleared all the interview rounds in this company, unfortunately due to some personal reason didn't join. 2 technical round was very good, interviewers and HR Minnu was very friendly and nice. Definitely 5 star for treating employees and aspirants.

    • Jitendra Gupta
      Jitendra Gupta Review from Google
      5.0 ★

      Jitendra Gupta's Review Sourced from Google

      Antino labs's development is handled by experience developers. This gives best services to the client.This complets milestone before the time. I will say that it is satisfactory organization

    • Prakhar Pandey
      Prakhar Pandey Review from Google
      5.0 ★

      Prakhar Pandey's Review Sourced from Google

      I am working here as an android developer. In a small time I got a great exposure. For the freshesr who want to enhance our skills to next level then Antino Labs is a right organization.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
    Visit Website View Profile
    4.6 4.6 (68)

  • CONTUS Tech

    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...

    Top Services:

    • DevOps Consulting
    • IT Services
    • Mobile App Development
    • IoT
    • Digital Services
    • Show more
    Location
    Santa Clara, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $25,000 - $50,000

    CONTUS Tech Services

    • DevOps Consulting
    • IT Services
    • Mobile App Development
    • IoT
    • Digital Services
    • Software Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Hyundai
    • ICICI Bank
    • JCB
    • CocoCola
    • Versa Networks
    Data sourced from the agency's DesignRush profile

    CONTUS Tech Reviews & Testimonials

    • bharath kumar
      bharath kumar Review from Google
      1.0 ★

      bharath kumar's Review Sourced from Google

      Never fall for the positive feedbacks. I'm completely agree with the following comments which have low ratings. I have experienced the same kind of problem with this company. I strongly recommended to stay away from this company. If you really care about the mental health, Please stay away from this company.

    • Dhanraj Parthasarathy
      Dhanraj Parthasarathy Review from Google
      1.0 ★

      Dhanraj Parthasarathy's Review Sourced from Google

      Heads up to anyone looking at this place: they deleted a your comments if they're negative. Seriously, think twice before joining. I'm not kidding, avoid this company if you care about your mental health. Make sure you really read between the lines before you sign anything with this company. Don't fall for the positive reviews. It had given by the employees from the managements. It's all fake. It's just a really disrespectful environment. They'll keep stringing you along during your probation, saying they can't make it official until the project wraps. Then, the second it's done, they slap you with a PIP and suddenly your performance "isn't meeting expectations." They also expect you to work weekends regularly and don't give any comp-off for it. Oh, and they're doing another round of layoffs—for the second time! You'll never get recognition for your hard work, and you'll constantly feel like your job is on the line. Honestly, just do not join here. It's not worth it. And to whoever tries to delete this... well, let's just say it's pretty low to try and hide the truth about how they treated us.

    • Naveen Kumar. L
      Naveen Kumar. L Review from Google
      1.0 ★

      Naveen Kumar. L's Review Sourced from Google

      Worst Place I’ve Ever Worked – Avoid at All Costs If you care about your health, run. This company thrives on exploitation — 16+ hour workdays, weekends stolen, and deadlines that destroy any work-life balance. Management has zero empathy and treats burnout like a badge of honor. Expect to be working till 3 AM regularly while your mental health crumbles. No appreciation, no boundaries, no future.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
    Visit Website View Profile
    4.0 4.0 (314)

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