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 × Manufacturing ×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
  • Custom Software That Works In The Real World

    SoftDoes builds custom software, AI, and web applications for mid-market companies that need enterprise-grade results without the overhead of an in-house team. U.S.-based leadership. Full IP ownership. No lock-in...

    Top Services:

    • Software Development
    • AI Development
    • Mobile App Development
    • Web Development
    • UI/UX Design
    • Show more
    Location
    St. Louis, Missouri
    Number of Employees
    50 - 99
    Average Hourly Rate
    $75/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    1 Project Listed

    Soft Does Services

    • Software Development
    • AI Development
    • Mobile App Development
    • Web Development
    • UI/UX Design
    • Cloud Consulting
    • Blockchain
    • Software Testing
    • Digital Strategy
    • Big Data Analytics
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Altera
    • Brizacorp
    • Color and Harmony
    • FMY Orthodontics
    Data sourced from the agency's DesignRush profile
  • The Agency for Ambitious Brands

    Paradigm is a full-service marketing agency helping brands grow with confidence through branding, digital marketing, and web design. For 30 years, we've crafted powerful stories, built authentic connections, and delivered results that move brands forward...

    Top Services:

    • Digital Marketing
    • Branding
    • Web Development
    • Software Development
    • Web Design
    • Show more
    Location
    St. Louis, Missouri
    Number of Employees
    Under 49
    Average Hourly Rate
    $180/hr
    Minimal Budget
    $1,000 - $10,000

    Paradigm Services

    • Digital Marketing
    • Branding
    • Web Development
    • Software Development
    • Web Design
    • Print Design
    • Graphic Design
    • Mobile App Development
    • Content Marketing
    • SEO
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Nestlé Purina
    • Panera Bread Company
    • Spectrum
    • Wells Fargo Advisors
    • The Gateway Arch
    • Bethesda
    • Saint Louis University
    • The Muny
    • Brava Lubricants
    • Paraquad
    Data sourced from the agency's DesignRush profile

    Paradigm Reviews & Testimonials

    • Diane Mueller
      Diane Mueller Review from Google
      5.0★

      Diane Mueller's Review Sourced from Google

      Paradigm has been great to work with on our website project. With all the customization our site needed, Paradigm always had a solution for us. Would not hesitate at all to give Paradigm any projects!

    • Bob Jenkins
      Bob Jenkins Review from Google
      5.0★

      Bob Jenkins's Review Sourced from Google

      We chose PNMG to develop our website in 2018 and have been with them ever since! They are very conscientious of their work and the quality of the employees are top notch, not to mention the great support they add. We have monthly meetings to keep everything current and are very pleased we chose them to partner with!

    • Kristin Seymour MSN, RN, AHCNS-BC
      Kristin Seymour MSN, RN, AHCNS-BC Review from Google
      5.0★

      Kristin Seymour MSN, RN, AHCNS-BC's Review Sourced from Google

      Paradigm New Media Group is the best in St. Louis for producing digital media. They are professional, responsive, & creative. Paradigm improved the navigation of my website and set up an e-commerce account that is user friendly. Paradigm delivers high-caliber digital media, and stayed within my budget- that is huge! Thanks guys!

    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

Why companies trust DesignRush

Every agency is independently vetted before it can be listed or ranked

1

Identity Check

We verify businesses and reviewer LinkedIn profiles for integrity.

Agencies vetted
126,194+
2

Portfolio Review

We review agency work, case studies, and results to confirm skill.

Applicants rejected
49%
3

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We monitor listings regularly; outdated agencies are removed.

Agencies verified
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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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