Connect with vetted app development companies that build custom solutions designed to drive retention, engagement, and revenue. Filter agencies by budget, team size, and location to find the right partner for your project.

List of the Best App Development Firms

10 Companies - Rankings updated: September 03, 2026

All mobile app development firms on DesignRush have been assessed for their expertise, portfolio, and verified client reviews. Some listings may be paid.

Boutique × $50,000 & Up ×
  • Software Outsourcing & Development | 500+ Active Clients

    Founded in 2009 by Nacho de Marco and Paul Azorín, BairesDev provides top 1% tech talent to a range of clients, from startups to Fortune 500 companies...

    Top Services:

    • Software Development
    • Web Development
    • UI/UX Design
    • Mobile App Development
    • Software Testing
    • Show more
    Location
    San Francisco, California
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    5 Projects Listed

    BairesDev Services

    • Software Development
    • Web Development
    • UI/UX Design
    • Mobile App Development
    • Software Testing
    • Web Design
    • Staff Augmentation
    • Product Design
    • ERP Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Google
    • Salesforce
    • IBM
    • Autodesk
    • Rolls-Royce
    • SiriuXM
    • Motorola
    • Burger King
    • Chime
    Data sourced from the agency's DesignRush profile

    BairesDev Reviews & Testimonials

    • Undisclosed
      Undisclosed Director of e-commerce solutions at URBN
      5.0

      Web Development Review from Undisclosed

      We were truly impressed by the BairesDev team's expertise, work ethic, and eagerness to learn. The agency quickly adapted to our corporate culture and integrated seamlessly. When tasked to work on a new platform, it provided solutions within a week. It's like the software version of a versatile and powerful utility infielder.

    • Undisclosed
      Undisclosed Engineering Manager at Pinterest
      5.0

      Staff Augmentation Review from Undisclosed

      BairesDev engineers are the soul of the team. They’re able to identify dependencies and figure out solutions quickly. They strongly exceeded my expectations.

    • Undisclosed
      Undisclosed Team Leader at Avigilon
      5.0

      Web Development Review from Undisclosed

      Following consultations with the BairesDev team, we recognized that the primary objective was to localize the system and concentrate on enhancing the UI, while also upgrading tools to uphold a high-performance analytics system. Witnessing its expertise and ability to address specific issues greatly alleviated our security platform's primary concerns.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Unlock the BlackBox, achieve your Vision

    BlackBox Vision is a boutique digital product development studio based in Buenos Aires, Argentina, dedicated to helping startups and scale-ups bring their ideas to life...

    Top Services:

    • Mobile App Development
    • Software Development
    • Product Design
    • UI/UX Design
    • VR/AR
    • Show more
    Location
    Victoria, Argentina
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    13 Projects Listed

    BlackBox Vision Services

    • Mobile App Development
    • Software Development
    • Product Design
    • UI/UX Design
    • VR/AR
    • Blockchain
    • AI Development
    • IoT
    • Wearables
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Centro del Marmol
    • Criptoladrillo
    • Compra Futura
    • SURA Seguros
    • Answer Seguros
    • Daniela de Lucia
    • Tervey
    • Unmano
    • Spoilertime
    • Pro-Athletes
    Data sourced from the agency's DesignRush profile
  • hedgehog lab is a global digital product consultancy that partners with brands and enterprises to help them achieve their business goals using emerging technologies...

    Top Services:

    • Mobile App Development
    Location
    Newcastle, United Kingdom
    Number of Employees
    100 - 249
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $50,000 & Up

    hedgehog lab Services

    • Mobile App Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Natwest
    • Santander
    • Standard Life
    • Deliveroo
    • Lasership
    Data sourced from the agency's DesignRush profile

    hedgehog lab Reviews & Testimonials

    • Philip Plamenov
      Philip Plamenov Review from Google
      5.0

      Philip Plamenov's Review Sourced from Google

      Great company to work with. If you want great service and friendly team this is your place!

    • Jack Deverson
      Jack Deverson Review from Google
      1.0

      Jack Deverson's Review Sourced from Google

      I'm sure they do cracking development work, but all I've received, on two occasions, is really poor customer service. Both times I've gone to them asking for a quote, I've been given the impression that it was an imposition - either insinuating that we wouldn't be able to afford their rates, or ignoring the enquiry altogether for a few weeks before palming us off after the quote deadline. ("We didn't think it would be the right kind of project for us anyway.") I've found their communications brusque, bordering on rude, and as a business in the region seeking to work with other local organisations, frankly I expected better given their reputation. The small details are important.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Magento Adobe Commerce Expertise. Unmatched.

    Atwix is a full-service Magento Adobe Commerce agency with a depth of Magento expertise that is simply unmatched...

    Top Services:

    • eCommerce Development
    • SEO
    • Mobile App Development
    Location
    Chicago, Illinois
    Number of Employees
    50 - 99
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    6 Projects Listed

    Atwix Services

    • eCommerce Development
    • SEO
    • Mobile App Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Byrne
    • Wyze
    • Cabinets
    • Coyuchi
    Data sourced from the agency's DesignRush profile

    Atwix Reviews & Testimonials

    • Matthew Timion
      Matthew Timion Review from Google
      5.0

      Matthew Timion's Review Sourced from Google

      I had the privilege of working with Atwix during a Magento 1 -> Magento 2 (Adobe Commerce) migration. Our e-commerce product was already highly customized and a bit "out of the box" in terms of implementation. Atwix was professional, detail oriented, and regularly met with us to ensure all of our needs were met, the product was fully scoped, and helped ensure success. They went above and beyond in terms of developer resources and expertise. Their deep knowledge of the Adobe Commerce platform helped reduce costs and made the whole process wonderful.

    • Eric Gozenput
      Eric Gozenput Review from Google
      5.0

      Eric Gozenput's Review Sourced from Google

      Atwix has some of the best Magento developers we have worked with. The whole team is a pleasure to work with and extremely professional. Highly recommended!

    • Anton Kril
      Anton Kril Review from Google
      5.0

      Anton Kril's Review Sourced from Google

      Having known Slava and a bunch of people from his team for the better part of a decade, I can attest to their remarkable dedication, intelligence, and leadership in the ecommerce development realm. It's no surprise to see Atwix being recognized for their work. This photo from Meet Magento New York where they receive a reward on behalf of their customer is just one of the many testaments to the outstanding service and commitment they provide to their clients. Congratulations, Slava and team! Keep setting the standard in the industry. P.S. Slava always knows which camera to look at.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Creating Mobile Apps That Digitally Transform Business

    Sugar Rush is a Mobile App Agency that provides mobile app development services to clients in the UK, Ireland, Europe, and the US. They have received recognition as the "UK App Agency of the Year" and have won 'App of The Year' awards for three consecutive years in Northern Ireland...

    Top Services:

    • Mobile App Development
    • Web Design
    • Software Development
    • VR/AR
    • Show more
    Location
    Belfast, United Kingdom
    Number of Employees
    Under 49
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    1 Project Listed

    Sugar Rush Services

    • Mobile App Development
    • Web Design
    • Software Development
    • VR/AR
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • BUNZL
    • BBC
    • Radio Times
    • TopGear
    • Game of Thrones
    • Stryker
    • Olympus
    • Angling Direct
    Data sourced from the agency's DesignRush profile

    Sugar Rush Reviews & Testimonials

    • Dean Lyttle
      Dean Lyttle Review from Google
      5.0

      Dean Lyttle's Review Sourced from Google

      On behalf of AES Global Ltd - Moving our app development locally was a key focus for us in 2020. After extensive research into local companies and speaking to them all Ali, Danielle and the whole team at Sugar Rush most definitely came out on top. Their company culture and attention to detail was what caught our eye first which was followed closely on their project management skills. We are currently working on our 4th project together and i am still amazed with their dedication to learn our product inside out so they truly understand how it should function with the app and provide new ideas and better flows than what we had before. We have dealt with a large number of different colleagues within Sugar Rush and every single one of them are a credit to the company and provide a brilliant customer experience. Here is to the last 2 year partnership with many more years to follow. Thank you Sugar Rush for your partnership and helping to modernise and optimise our app platform.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Think. Design. Develop. Launch. Repeat.

    Significa is an award-winning digital product design and development agency based in Porto, building beautifully functional digital products for clients across the globe...

    Top Services:

    • Design Services
    • Software Development
    • eCommerce Development
    • UI/UX Design
    • Product Design
    • Show more
    Location
    Porto, Portugal
    Number of Employees
    Under 49
    Average Hourly Rate
    $75/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    5 Projects Listed

    Significa Services

    • Design Services
    • Software Development
    • eCommerce Development
    • UI/UX Design
    • Product Design
    • Web Design
    • Web Development
    • Mobile App Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • The Fertility Partnership
    • Zoko
    • Yonder
    • Oopsie
    • Reforestum
    • mishmash
    • OpenNode
    • Akasha
    • Backercamp
    • allO
    Data sourced from the agency's DesignRush profile
  • Appstem Designs and Develops Custom Software To Help Our Clients Solve Complex Business Problems.

    Appstem is a full-service mobile strategy, design and development agency, Based in San Francisco, Appstem has delivered over 200 apps with a team of experts specializing in strategy, QA, development and UI/UX design...

    Top Services:

    • Web Design
    • eCommerce Development
    • IoT
    • Mobile App Development
    • Software Development
    • Show more
    Location
    San Francisco, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    5 Projects Listed

    Appstem Services

    • Web Design
    • eCommerce Development
    • IoT
    • Mobile App Development
    • Software Development
    • DevOps Consulting
    • Cloud Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Tesla
    • Johnson & Johnson
    • Zendesk
    • Kaiser
    • Monster
    • Byton
    • Geisinger
    • Cambia
    Data sourced from the agency's DesignRush profile

    Appstem Reviews & Testimonials

    • Nate Sroor
      Nate Sroor Review from Google
      5.0

      Nate Sroor's Review Sourced from Google

      From my initial consultation to the completion of the development process, the entire team at AppStem has been a pleasure to work with. With so many Mobile App Development companies to choose from, it's important to chose one who is willing to understand your needs and clearly outline a game plan before getting into development. If you're looking for more of a partner than just an agency, you're in good hands with AppStem.

    • Zachary Zimmerman
      Zachary Zimmerman Review from Google
      5.0

      Zachary Zimmerman's Review Sourced from Google

      Not sure I would have been able to find a better development team. My app was built to spec and is running great! I would highly recommend them

    • Ryan Ricketts
      Ryan Ricketts Review from Google
      5.0

      Ryan Ricketts's Review Sourced from Google

      AppStem was able to answer all my questions in regards to designing a mobile app. They brought original ideas and professional aspect to their project for us. My team was extremely happy with the final results. I know I will be going back to them for my mobile app development needs.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • We Deliver Promises

    Enterprises with AI, Data & Digital Engineering GEGNAT is a global technology consulting and software engineering company specializing in Artificial Intelligence, Data Engineering, Master Data Management (MDM), Cloud Platforms, and Enterprise Digital Transformation...

    Top Services:

    • Web Development
    • eCommerce Development
    • SEO
    • AI Development
    • Mobile App Development
    • Show more
    Location
    Albuquerque, New Mexico
    Number of Employees
    100 - 249
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $50,000 & Up

    Gegnat Yards Services

    • Web Development
    • eCommerce Development
    • SEO
    • AI Development
    • Mobile App Development
    • Software Testing
    • Software Development
    • Staff Augmentation
    • IT Services
    • DevOps Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Salesforce
    • ACG Group
    • FCI-CCM
    • Aditya Birla
    • Cisco
    • Volvo
    • TVS
    • Glenmark
    Data sourced from the agency's DesignRush profile
  • We Make Great Apps. It's That Simple.

    We are a mobile application studio, built around a core team of seasoned marketers, serial entrepreneurs, veteran strategists and big idea lovers. We work with a diverse array of brands, companies, organizations and individuals to turn great ideas into powerful apps...

    Top Services:

    • Web Design
    • Web Development
    • UI/UX Design
    • Mobile App Development
    • AI Development
    • Show more
    Location
    Irvine, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $215/hr
    Minimal Budget
    $50,000 & Up

    MEDL Mobile Services

    • Web Design
    • Web Development
    • UI/UX Design
    • Mobile App Development
    • AI Development
    • Wearables
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Taco Bell
    • Disney
    • Medtronic
    • Emirates
    • Kaiser Permanente
    • Body Surface Translations
    • Dreamscape
    • Xuro
    • Jawku
    • Hyundai
    Data sourced from the agency's DesignRush profile

    MEDL Mobile Reviews & Testimonials

    • Jonathan Ortiz
      Jonathan Ortiz Review from Google
      5.0

      Jonathan Ortiz's Review Sourced from Google

      The team at MEDL did a beautiful job with the new Feeding Westchester website. It is truly a work of art. Their team was able to translate our needs into an incredibly useful website that supports our mission.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Creative Digital Agency London.

    AndAgain has an Integrating strategic insights, creative ingenuity, and cutting-edge technology, we specialize in the development of digital products, websites, apps, and campaigns that not only enhance our clients' online presence but also elevate the image of our agency partners...

    Top Services:

    • Creative Services
    • UI/UX Design
    • Product Design
    • Web Design
    • Web Development
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $50,000 & Up

    AndAgain Services

    • Creative Services
    • UI/UX Design
    • Product Design
    • Web Design
    • Web Development
    • Mobile App Development
    • eCommerce Development
    • Branding
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • adidas
    • Disney
    • Emirates
    • Fendi
    • Google
    • Harrods
    • Pinterest
    • Sky
    • Valentino
    • Volkswagen
    Data sourced from the agency's DesignRush profile

Frequently Asked Questions About App Development Companies

What services do app development companies typically offer?

App development companies usually handle strategy, UI/UX design, development, testing, launch, and ongoing maintenance. Some also provide product research and app store optimization.

How much does it cost to hire an app development company?

App development agencies typically charge between $30,000 and $500,000+, depending on the scope and complexity of the project.

Typical custom app costs by scope include:

  • Simple app: $10,000 to $35,000
  • Medium-complexity app: $35,000 to $150,000
  • Complex app: $150,000 to $300,000+

How long does it take to develop a mobile app?

Most apps take around 3 to 7 months to develop, though the timeline depends on complexity, features, technology, and the development team. Changes in scope, integrations, and testing requirements can also extend the timeline.

  • Simple apps: a few weeks to 3 months
  • Medium-complexity apps: 3 to 7 months
  • Complex apps: 7 to 12+ months 

How do I choose the right app development company?

Look at relevant experience, past projects, technical expertise, communication, and post-launch support. The company should also understand your business goals and target users.

What should I look for in an app development company’s portfolio?

Check whether they have built apps similar to yours and review the usability, design quality, and functionality of their work. Pay attention to projects in your industry or with comparable technical requirements.

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