Searching for a top-tier mobile app development company in Missouri with the technical abilities and local insight to elevate your business? From Kansas City to St. Louis, we’ve evaluated the technical capabilities and app development services op agencies — to bring local businesses like yours top candidates. Explore our listing and refine your search by budget, team size, reviews, and other criteria to find the right partner for your business. 

Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.

United States × Missouri × Real Estate ×Clear Filters
  • AI-ready Senior Engineers and Dedicated Teams in ~60 hours

    Founder-led IT staff augmentation for small-mid companies. We solve problems you haven't fully scoped yet...

    Top Services:

    • eCommerce Development
    • Software Testing
    • AI Development
    • Mobile App Development
    • Software Development
    • Show more
    Location
    New York, Missouri
    Number of Employees
    Under 49
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    1 Project Listed

    UASOFTDEV Services

    • eCommerce Development
    • Software Testing
    • AI Development
    • Mobile App Development
    • Software Development
    • VR/AR
    • Blockchain
    • Staff Augmentation
    • DevOps Consulting
    • WordPress Website Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Dwelly
    • Managed IT Experts
    • Hazy
    Data sourced from the agency's DesignRush profile

    UASOFTDEV Reviews & Testimonials

    • Khrystyna Sliana
      Khrystyna Sliana Digital Marketing Manager at Red Jumpers Agency
      5.0★

      DevOps Consulting Review from Khrystyna Sliana

      We hired a DevOps engineer from UASOFTDEV to handle a multi-entity AWS infrastructure split. The project was completed on schedule, with zero downtime and great attention to security and data integrity. Recommended.

    • Leonid Viktorov
      Leonid Viktorov СЕО at Biz Adviser
      5.0★

      Dedicated Team Augmentation Review from Leonid Viktorov

      I am the CEO of Biz Adviser, a business consulting company. We work with companies on strategic business initiatives, digital transformation, and improving business performance. We partnered with UASOFTDEV when we urgently needed additional engineering capacity. I was looking for proven senior developers and did not have time to spend weeks sourcing candidates and conducting multiple interviews. UASOFTDEV offered to provide vetted Ukrainian developers within 60 hours, which was exactly what we needed. The team provided senior engineers with strong technical expertise and excellent communication skills. We worked with developers across PHP, Node.js, Python, and React, depending on the project requirements. They were reliable, proactive, and able to understand not only the technical tasks but also the broader business context. The developers contributed to several important initiatives, including the implementation of an AI agent, and helped us move projects forward faster while keeping development costs under control. UASOFTDEV delivered what they promised. The process was straightforward, communication was reliable, and the developers were able to start working quickly without compromising on quality. The pricing was a good fit for our budget, and the overall value for cost was excellent. I also appreciated the cultural fit and the team's ability to communicate effectively and take ownership of their work. I would definitely recommend UASOFTDEV to companies looking for reliable staff augmentation with senior Ukrainian developers. They are a trustworthy partner that can provide strong engineering talent quickly and help businesses deliver important initiatives without the overhead of a lengthy hiring process.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Leading Website Design & Development Agency For The Best Digital Experience

    American Web Designers is a professional Web Design and Digital Marketing Agency. We excel in providing full services to our clients and helping them reach their full potential along with highly successful growth...

    Top Services:

    • Web Design
    • Branding
    • Digital Marketing
    • Logo Design
    • Web Development
    • Show more
    Location
    St. Louis, Missouri
    Number of Employees
    100 - 249
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    4 Projects Listed

    American Web Designers Services

    • Web Design
    • Branding
    • Digital Marketing
    • Logo Design
    • Web Development
    • eCommerce Development
    • SEO
    • Social Media Marketing
    • Mobile App Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Flex Nails
    • God's Hands Massage
    • Water At Door
    • Soul Food Guide
    Data sourced from the agency's DesignRush profile

    American Web Designers Reviews & Testimonials

    • Jernir Etienne
      Jernir Etienne sales consultant at Hyundai Motor Company
      4.3★

      Web Design Review from Jernir Etienne

      I hired american web designers for my business development and they have been transformed our business into what i exactly want. Their input, creative vision and attention to detail enhance our products and help us connect effectively with our target audience. Recommend their services to anyone looking to improve their goals and business presence.

    • Peter James
      Peter James American Patch logo Product Service Coordinator at American Patch
      5.0★

      Digital Marketing Review from Peter James

      The social media management service provided was outstanding. They consistently engaging content, meaningful interactions, and significantly boosted our online presence. Their proactive approach and strategic insights truly set them apart. Highly recommend for anyone seeking to elevate their social media game.

    • Dessi Nikolova
      Dessi Nikolova Review from Google
      1.0★

      Dessi Nikolova's Review Sourced from Google

      Attention! - Big scam!After 3 months of communication back and forth ( with multiple people) , I ended up paying almost $5000 for a website that looks like crap.Had to have a new one built since there is no one to take responsibility for the work they have done. After trying for another 2 months to communicate and “ fix” the website, I finally gave up. They needed more, and more money to “ fix” a simple informative site ( that’s all I wanted)… And since I had already invested so much, it was hard to give up and I kept hoping and paying more and more until they drained my account. Being unable to pay someone else, I had no choice but to try building the website myself. I went to Godaddy and did it! Turned out it was so easy to do - multiple choices of templates! I found one that also allows me to take payments and make appointments online. And I paid $179 for it. Beautiful website! Please save your hard earned money and don’t even make attempts to contact these scammers.This, by the way, is the only bad review I ever left for someone and that should tell you a lot.Good luck!

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Custom Software Development & IT Staff Augmentation Company

    We specialize in leveraging the latest technologies and industry best practices to drive business growth and foster innovation...

    Top Services:

    • Staff Augmentation
    • Cloud Consulting
    • Software Development
    • Mobile App Development
    • Software Testing
    • Show more
    Location
    New York, Missouri
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $10,000 - $25,000

    Softellar Services

    • Staff Augmentation
    • Cloud Consulting
    • Software Development
    • Mobile App Development
    • Software Testing
    • Web Development
    • UI/UX Design
    • Web Design
    • DevOps Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Multi Radiance Medical
    • Lomalux Laboratories
    • Grand Auto
    • Commercial Capital Group
    • WellWu
    Data sourced from the agency's DesignRush profile

    Softellar Reviews & Testimonials

    • Kerry Cooper
      Kerry Cooper Senior Vice President of Medical Affairs at Vera Therapeutics
      5.0★

      Software Development Review from Kerry Cooper

      We partnered with Softellar to modernize our patient records management system and improve overall healthcare delivery, and the results have been outstanding. The project was essential for us, especially during the pandemic, when remote care became a necessity. Softellar's team developed a comprehensive healthcare solution that seamlessly integrated a central patient records management system, telemedicine capabilities, remote health monitoring features, and full regulatory compliance.Their deep understanding of our unique needs and workflows allowed them to customize the solution effectively, creating a user-friendly system that reduced delays and significantly improved patient care. The telemedicine functionality ensured uninterrupted care during the pandemic, while remote health monitoring provided us with valuable insights into patient conditions, enabling proactive interventions.What impressed us most was Softellars flexibility and responsiveness. They delivered the project on time, made adjustments when needed, and ensured the system worked perfectly with our existing infrastructure. Their attention to detail and commitment to user experience made the system easy to adopt with minimal training for our staff.

    • Ariel Elkayam
      Ariel Elkayam VP, Head of Product at LoanStreet Inc.
      5.0★

      Staff Augmentation Review from Ariel Elkayam

      Softellar has been a game-changer for LoanStreet, providing exceptional IT Staff Augmentation that seamlessly integrated with our team. They invested time in understanding our platforms needs, demonstrating a deep grasp of our technical and business objectives. Their engineers were not only highly skilled but proactive problem solvers, helping us tackle challenges in real-time data tracking and loan portfolio performance. They also proved remarkably adaptable, adjusting to regulatory-driven priority shifts without sacrificing quality or efficiency.One standout project involved enhancing our platforms user experience for credit unions, banks, and lenders. Softellar's team went beyond mere implementation by offering valuable feedback on design and usability, significantly improving client engagement and satisfaction. They also provided comprehensive post-project support and knowledge transfer, empowering our team to manage and scale independently.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Mobile App Experiences That Inspire

    Qodestar is a digital studio focused on building clean, high-performing mobile apps and digital experiences. We partner with startups, growing businesses, and creative teams to transform ideas into intuitive mobile solutions through thoughtful design and development...

    Top Services:

    • Mobile App Development
    • Product Design
    • UI/UX Design
    • Digital Marketing
    • SEO
    • Show more
    Location
    St. Louis, Missouri
    Number of Employees
    Under 49
    Average Hourly Rate
    $75/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    1 Project Listed

    Qodestar Services

    • Mobile App Development
    • Product Design
    • UI/UX Design
    • Digital Marketing
    • SEO
    • PPC
    • Social Media Marketing
    • eCommerce
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • 15 Fifteen Media
    • CareBridge
    • LMI Colorado
    Data sourced from the agency's DesignRush profile
  • Building Market-Ready MVP

    In order to support your pitch, we create prototypes, proof-of-concepts, and miniature applications while you create business plans and seek funding...

    Top Services:

    • Mobile App Development
    • Web Development
    • WordPress Website Design
    • SEO
    • Digital Marketing
    • Show more
    Location
    Cottleville, Missouri
    Number of Employees
    100 - 249
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $1,000 - $10,000

    XTAPPS Software Solutions Services

    • Mobile App Development
    • Web Development
    • WordPress Website Design
    • SEO
    • Digital Marketing
    • PPC
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Food and Beverage Industry
    • Real Estate Industry
    • Pets Industry
    Data sourced from the agency's DesignRush profile

    XTAPPS Software Solutions Reviews & Testimonials

    • Label One Productions
      Label One Productions Review from Google
      5.0★

      Label One Productions's Review Sourced from Google

      Met with Nithil about starting a mobile app. He was incredible, he knows this business inside and out, very professional and competitive pricing! 5 out of 5 stars!

    • carmen nocera
      carmen nocera Review from Google
      5.0★

      carmen nocera's Review Sourced from Google

      We had a great experience working with XTAPPS on digital projects. The team was professional, attentive, punctual, and very helpful, making the process smooth and enjoyable. Highly recommended for app development, web solutions, and digital projects.Carmen NoceraVice President & Europe DirectorThe Prayer Covenant

    • Emil Moore
      Emil Moore Review from Google
      5.0★

      Emil Moore's Review Sourced from Google

      XTAPPS is an amazing company and highly recommend them for all your web design services. They are also very quick to respond to any questions or concerns.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Crema is a design consultancy that helps forward-thinking leaders discover, understand, and execute.

    Crema is a design consultancy that helps companies build the custom software they need to compete in todays market. Our product teams blend business strategy and technical expertise to create solutions for our clients most pressing needs...

    Top Services:

    • UI/UX Design
    • Software Development
    • AI Development
    • Software Testing
    • Mobile App Development
    • Show more
    Location
    Kansas City, Missouri
    Number of Employees
    Under 49
    Average Hourly Rate
    $175/hr
    Minimal Budget
    $25,000 - $50,000

    Crema Services

    • UI/UX Design
    • Software Development
    • AI Development
    • Software Testing
    • Mobile App Development
    • Product Design
    • Digital Services
    • Business Consulting
    • Digital Strategy
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • TILR
    • Select Quote
    • Tria Health
    Data sourced from the agency's DesignRush profile

    Crema Reviews & Testimonials

    • Alana Muller
      Alana Muller Review from Google
      5.0★

      Alana Muller's Review Sourced from Google

      WOW! Working with Crema was a dream come true -- literally! Rarely have I had the opportunity to engage with a partner who so actively listens to its client's vision, considers ways address the request, then magically brings it to life with such finesse... that's exactly what Crema did. With a tight turnaround time and a very public launch, Crema created a beautiful user interface, backend database, and promotional display that activated my product and made it fun and easy to use while perfectly representing my brand. I am so grateful to Crema and will continue to seek opportunities to work with this innovative, creative, and positive group of professionals.

    • Evan Harmon
      Evan Harmon Review from Google
      5.0★

      Evan Harmon's Review Sourced from Google

      Every experience I've had with Crema has always been a positive one. And every employee I've met there have been incredibly nice, thoughtful, and great to talk to. They have a very cool office space in the Crossroads with great views of KC that just makes you want to hang out there! Crema seems to highly prioritize their company culture by putting on events and having a heathy work/life balance. In short, they seem to really care about people and that carries into their work, judging by how I was able to see their process for developing solutions for their clients at a workshop they held. Using the design sprint methodology, and healthy doses of design thinking, humanistic perspectives, diversity, and pragmatism, they clearly have spent a great deal of effort honing a highly efficient development strategy that makes finding creative solutions a reliable science. It gave me a lot of ideas to bring back to my own projects and meetings! I definitely recommend their design sprint workshop and can only imagine they would be a great company to have tackling your company's challenges.

    • Travys Keto
      Travys Keto Review from Google
      5.0★

      Travys Keto's Review Sourced from Google

      The Crema office is very cool. Lots of modern touches with a great view of the Kauffman Center for Performing Arts. I recently attended a Design Sprint workshop and had a great time! It was a unique experience and a great tool for solving even the most complex problems. I'm hoping to utilize it in my current role. Justin was a great facilitator and I would recommend using Crema for any Design Sprint needs or even attending the workshop yourself. It was also a great networking opportunity. Highly recommended!

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

    The Joseph Company is a trusted technology partner providing custom web development & IT services to businesses across St. Louis and Southern Illinois. Headquartered in Arnold, Missouri, we serve clients throughout the region with a commitment to excellence, responsiveness, and long-term partnership...

    Top Services:

    • Software Development
    • eCommerce Development
    • Business Consulting
    • Web Design
    • Web Development
    • Show more
    Location
    Arnold, Missouri
    Number of Employees
    Under 49
    Average Hourly Rate
    $120/hr

    The Joseph Company Services

    • Software Development
    • eCommerce Development
    • Business Consulting
    • Web Design
    • Web Development
    • WordPress Website Design
    • UI/UX Design
    • Mobile App Development
    • IT Services
    • Software Testing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Placard Wizard
    • Charity Clothing Pickup
    • Prestige Trucking, Inc.
    • Wilmington Clinic
    • Checkered Cottage
    • Nuway Inc.
    • Intellus Automotive Systems
    • Southwest Oral Surgery
    • Ingenium Partners
    • Castle Design
    Data sourced from the agency's DesignRush profile

    The Joseph Company Reviews & Testimonials

    • Stella Oberkrom
      Stella Oberkrom Review from Google
      5.0★

      Stella Oberkrom's Review Sourced from Google

      I have worked with Sam, Jan, and the Joseph Company team for over 14 years and I could not be happier with their services!

    • Richard Rice
      Richard Rice Review from Google
      5.0★

      Richard Rice's Review Sourced from Google

      Our company provides software as a service to some of the largest transportation companies nationwide. For over 16 years TJCO has been our trusted go to software developer. TJCO support and response times go over and above expectations. We appreciate their professional approach and look forward to working with them again on our next development project.

    • Julio Mino
      Julio Mino Review from Google
      1.0★

      Julio Mino's Review Sourced from Google

      I ordered the DNC scrub they never delivered. I am still waiting for my refund. Ordered on a Saturday got an email stating " our offices are closed we will reopen bla bla bla" After a few days of hassle they decided to refund however so far the money did not show up in my credit card. I don't recommend doing business with this company.

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

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Frequently Asked Questions

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.

What track record should I look for in an app development company?

Ask for launch counts, instead of project counts. An app development company that has shipped dozens of live apps has already solved App Store review, retention, and post-launch iteration. Designli, for example, lists more than 200 product launches and traces its process back to Applits, an app studio its founders ran before the agency existed.

What are the top mobile app development companies in 2026?

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