Searching for a reliable mobile app development company in St. Louis, Missouri, to help you innovate? DesignRush features agencies trusted by Fortune 500 brands like IBM and Deloitte, ensuring you find quality partners. With over 1M monthly visitors and 40,000+ vetted agencies, our platform is designed to connect you with the best in the business. Compare providers by industry expertise, client type, budget, reviews, team size, and portfolio.

Best St. Louis Mobile App Developers

20 Companies - Rankings updated: September 05, 2026

Each agency undergoes DesignRush evaluation for professional expertise and genuine client satisfaction to assist your search. Some featured placements are paid.

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United States × Missouri × St. Louis × Sort by: Number of Reviews × Clear Filters

  • American Web Designers

    Leading Website Design & Development Agency For The Best Digital Experience

    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
    View Profile
    4.3 4.3 (2)
    3.0 3.0 (6)

  • Tecziq Solutions

    Strategy, Innovation, Growth

    Strategy, Innovation, Growth

    Technology partners in the development and implementation of automated solutions on mobile and web platforms leading to digital transformation and sustainable growth...

    Top Services:

    • Web Development
    • eCommerce Development
    • Software Development
    • Mobile App Development
    • Big Data Analytics
    • Show more
    Location
    St. Louis, Missouri
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    2 Projects Listed
    View Profile
    4.3 4.3 (1)

  • Paradigm

    The Agency for Ambitious Brands

    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
    View Profile
    5.0 5.0 (6)

  • RaiseTech

    Ecommerce Cloud Company

    Ecommerce Cloud Company

    RaiseTech is a world-class Cloud, SaaS, and E-commerce development service provider that helps businesses to transform and keep up with the constantly growing competition across various industries. With over 10 years of experience, the RaiseTech’s team of professionals knows what tools and solutions their...

    Top Services:

    • Web Development
    • Software Development
    • eCommerce Development
    • Mobile App Development
    • Show more
    Location
    St. Louis, Missouri
    Number of Employees
    Under 49
    Average Hourly Rate
    $45/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    6 Projects Listed
    View Profile

  • Unidev

    Trust your technology to the experts.

    Trust your technology to the experts.

    Unidev, founded in 1990, is a diversified IT company focused on applying technology to business. If you can dream it, we can build it...

    Top Services:

    • Web Development
    • WordPress Website Design
    • Web Design
    • Mobile App Development
    • Software Development
    • Show more
    Location
    St. Louis, Missouri
    Number of Employees
    Under 49
    Portfolios Count
    3 Projects Listed
    View Profile
    5.0 5.0 (16)

  • Beanstalk

    A St. Louis-based Web Design & Digital Marketing Agency

    A St. Louis-based Web Design & Digital Marketing Agency

    We are a full service web design and digital marketing agency. We create digital products and solutions to help our clients drive leads online and achieve online success. In an industry where many use smoke and mirrors to make it seem like they're doing more than they are, we rely on solid metrics to track...

    Top Services:

    • eCommerce Development
    • WordPress Website Design
    • Web Development
    • Web Design
    • Graphic Design
    • Show more
    Location
    St. Louis, Missouri
    Number of Employees
    Under 49
    Average Hourly Rate
    $130/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    8 Projects Listed
    View Profile
    5.0 5.0 (33)

  • Digital Radium

    We'll help you glow digital

    We'll help you glow digital

    Digital Radium is a St. Louis based full-service digital consulting company. We work with small and medium-size businesses by building websites that can turn visitors into loyal, lifelong customers. Our team is made up of mindful digital innovators by profession and marketers by heart. We passionately work...

    Top Services:

    • Web Development
    • eCommerce Development
    • Mobile App Development
    • SEO
    • Show more
    Location
    St. Louis, Missouri
    Number of Employees
    Under 49
    Average Hourly Rate
    $70/hr
    Portfolios Count
    1 Project Listed
    View Profile
    5.0 5.0 (8)

  • 1904labs

    Startup Minds, Innovative Solutions” Helping Enterprises Turn Ideas into Digitally Transformative Solutions...

    Top Services:

    • Mobile App Development
    • Software Development
    • AI Development
    • IT Services
    • Cloud Consulting
    • Show more
    Location
    St. Louis, Missouri
    Number of Employees
    100 - 249
    View Profile
    4.9 4.9 (11)

  • Ocelot Consulting

    Innovate. Modernize. Ocelot.

    Innovate. Modernize. Ocelot.

    Ocelot Consulting specializes in Cloud technologies, custom application development and enterprise IT security...

    Top Services:

    • Mobile App Development
    • Software Development
    • IT Services
    • Digital Marketing
    • Cybersecurity
    • Show more
    Location
    St. Louis, Missouri
    Number of Employees
    Under 49
    View Profile
    5.0 5.0 (1)

  • csg inc

    Empowering People. Transforming Businesses.

    Empowering People. Transforming Businesses.

    We help your business improve its unique processes and realize market advantages from your data by creating software and data analytics, data mining, solutions. Our software engineers design and develop new systems as well as updates or replacements for legacy systems...

    Top Services:

    • Software Development
    • Mobile App Development
    • Big Data Analytics
    Location
    St. Louis, Missouri
    Number of Employees
    Under 49
    View Profile

  • Habanero

    Innovative Digital For Innovative Companies.

    Innovative Digital For Innovative Companies.

    Habanero is an award-winning St. Louis based Digital Agency. We specialize in Digital Strategy, Web Site Design, Web Development, and Mobile Applications...

    Top Services:

    • Web Development
    • Digital Marketing
    • Web Design
    • Mobile App Development
    • eCommerce Development
    • Show more
    Location
    St. Louis, Missouri
    Number of Employees
    50 - 99
    View Profile
    5.0 5.0 (1)

  • VIVIDSITES

    Transforming the Way You Reach Customers

    Transforming the Way You Reach Customers

    VIVIDSITES is a long-standing, full-service digital marketing agency dedicated to innovation and providing exceptional service. With our ability to build custom or third-party software solutions at an affordable price point, we ensure organizations get the most out of their investment...

    Top Services:

    • Web Design
    • Web Development
    • eCommerce Development
    • UI/UX Design
    • Mobile App Development
    • Show more
    Location
    St. Louis, Missouri
    Number of Employees
    Under 49
    Average Hourly Rate
    $199/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile
    5.0 5.0 (22)

  • SteadyRain

    Taking Your Digital Strategy from Concept to Creation

    Taking Your Digital Strategy from Concept to Creation

    SteadyRain assists clients in crafting innovative, remunerative digital strategies through an extensive suite of services. Our team is highly qualified in consultancy, planning, website and mobile app design and construction, as well as online marketing and other related areas...

    Top Services:

    • Digital Marketing
    • SEO
    • PPC
    • Software Development
    • Mobile App Development
    • Show more
    Location
    St. Louis, Missouri
    Number of Employees
    Under 49
    Average Hourly Rate
    $149/hr
    View Profile
    5.0 5.0 (2)

  • Altec Design

    Premier and award wining internet marketing solutions provider!

    Premier and award wining internet marketing solutions provider!

    Altec Design has been delivering robust internet solutions to leading companies in St. Louis Mo since 2004. Unlike large companies that offer generic solutions, we believe in crafting customized products and services tailored to meet your unique requirements...

    Top Services:

    • Web Design
    • Web Development
    • Software Development
    • PPC
    • SEO
    • Show more
    Location
    St. Louis, Missouri
    Number of Employees
    Under 49
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile
    4.8 4.8 (25)

  • Alambda Systems

    Bridging the Gap between people and Technology

    Bridging the Gap between people and Technology

    Alambda Systems has had the pleasure of collaborating with customers and partners from across the world on projects of varying size and complexity. In all of our work, we blend curiosity and originality with a deep understanding of what it takes to make everything function and function exceptionally well...

    Top Services:

    • AI Development
    • Software Development
    • IT Services
    • Web Development
    • eCommerce Development
    • Show more
    Location
    St. Louis, Missouri
    Number of Employees
    Under 49
    Average Hourly Rate
    $125/hr
    Portfolios Count
    1 Project Listed
    View Profile
    5.0 5.0 (26)

  • Parux

    Products + Advisors + Ventures

    Products + Advisors + Ventures

    Parux is a digital product studio that helps startups and scale-ups design, develop and launch high-impact digital products and ventures...

    Top Services:

    • Mobile App Development
    • Software Development
    • Web Development
    • Web Design
    • Branding
    • Show more
    Location
    St. Louis, Missouri
    Number of Employees
    Under 49
    Average Hourly Rate
    $199/hr
    Minimal Budget
    $25,000 - $50,000
    View Profile
    1.0 1.0 (1)

  • STL Website Development

    Stress-Free Website Development, Maintenance, Logo Design, Copywriting Services.

    Stress-Free Website Development, Maintenance, Logo Design, Copywriting Services.

    STL Website Development specializes in minimalistic website development, maintenance, logo design, and copywriting services, ensuring a professional touch in every project. The agency's approach prioritizes collaboration and creativity. As such, STL Website Development brings the client's vision to life while...

    Top Services:

    • Web Development
    • WordPress Website Design
    • Web Design
    • eCommerce Development
    • Logo Design
    • Show more
    Location
    St. Louis, Missouri
    Number of Employees
    Under 49
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    15 Projects Listed
    View Profile

  • H/L Agency

    Innovating Brand Experiences.

    Innovating Brand Experiences.

    HL Agency is a creative powerhouse specializing in building immersive brand experiences, delivering impactful campaigns that engage audiences and drive measurable results...

    Top Services:

    • Graphic Design
    • Creative Services
    • Video Production
    • Social Media Marketing
    • Web Design
    • Show more
    Location
    St. Louis, Missouri
    Number of Employees
    100 - 249
    Average Hourly Rate
    $70/hr
    Minimal Budget
    $10,000 - $25,000
    View Profile
    5.0 5.0 (1)

  • Qodestar

    Mobile App Experiences That Inspire

    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
    View Profile

  • Soft Does

    Custom Software That Works In The Real World

    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
    View Profile

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