The top UI/UX Design agencies in 2026 are PreApps, selected from 1 agencies vetted by DesignRush on the basis of verified client reviews (4.5 avg. rating), project outcomes and industry expertise. PreApps leads the ranking for UI/UX Design.

# Agency Rating Min project Hourly Location
1 PreApps 4.5 (2) $50,000 & Up $200/hr Boston, Massachusetts
4.5 avg. rating from 5,873 verified reviews
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Music × $50,000 & Up ×

List of the Best UI/UX Design Companies

Every UI/UX design agency on DesignRush has been evaluated for its design expertise, service reliability, and verified client reviews. Some features may be paid.

  • #1 App Marketing Agency

    PreApps is the World's Leading App Growth Agency. Over the past 13+ years, the PreApps team has helped the most successful apps in the world launch and scale their app businesses to reach Millions of Downloads through our proprietary marketing programs...

    Top Services:

    • Digital Marketing
    • CRO
    • Social Media Marketing
    • Video Marketing
    • Design Services
    • Show more
    Location
    Boston, Massachusetts
    Number of Employees
    Under 49
    Average Hourly Rate
    $200/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    8 Projects Listed

    PreApps Services

    • Digital Marketing
    • CRO
    • Social Media Marketing
    • Video Marketing
    • Design Services
    • Public Relations
    • Video Production
    • UI/UX Design
    • Advertising
    • PPC
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Retail Industry
    • Hospitality Industry
    • Film Industry
    Data sourced from the agency's DesignRush profile

    PreApps Reviews & Testimonials

    • Alice Al-Nomani
      Alice Al-Nomani Chief Human Resources Officer at Web Design Sun
      5.0

      App Marketing Review from Alice Al-Nomani

      We contacted the PreApps agency to optimize our App. The scope of work included a comprehensive approach to improving the app's visibility, recommendations for optimizing and converting site traffic into installs, and increased downloads and improved user feedback through app metadata optimization in app stores; comprehensive analytical reports on the effectiveness Throughout our collaboration with the PreApps agency, we had clear and transparent communication, regular updates and reports, and all time frames, deadlines, and plans were met. At the same time, agency staff were flexible and open to feedback and recommendations, offering solutions and adjustments when needed. They were quick to respond to all needs, concerns, and requests for information, and provided support once the optimization strategy was PreApps' work stands out for its comprehensive approach, which takes into account everything from keywords and phrases to increasing visual elements and user engagement. We particularly like their personalized approach and continued support once the optimization is launched.

    • Julia Smith
      Julia Smith Director of Community & Audience Development at Hearst Magazines
      5.0

      App Marketing Review from Julia Smith

      The project's measurable outcomes indicated tremendous development and success. First, we saw a significant rise in app downloads and user acquisition, showing that the mobile app marketing methods we adopted were effective. Second, user engagement measures such as average session time and retention rates improved significantly, indicating a better user experience and app performance. Finally, the app's visibility and search rankings in app stores improved dramatically, as indicated by increased organic app store impressions and conversions, demonstrating the efficacy of the app store optimization efforts. PreApps provided excellent project management throughout our collaboration. They routinely delivered on time, meeting goals and deadlines. Furthermore, their attention to our demands was exceptional, as they addressed any issues or requests for assistance in a timely and courteous manner.

    • Alex Main
      Alex Main Review from Google
      5.0

      Alex Main's Review Sourced from Google

      PreApps helped us take our mobile app to the next level with targeted marketing that really worked. Their campaigns were creative, effective, and backed by solid research. We saw immediate improvements in user downloads and engagement. Their team is responsive, professional, and genuinely passionate about what they do. We couldn't have asked for a better experience.

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

Frequently Asked Questions About UI/UX Design Companies

What services does a UI/UX design agency typically offer?

A UI/UX design company typically helps organizations plan, design, and validate digital experiences for mobile apps, websites, and software products.  

Core UI/UX design services include:

  • UX audit
  • User research and analysis
  • Design systems (visual components, standards, governance) 
  • Interaction Design (IxD)
  • Information architecture 
  • Wireframes and prototypes 
  • User testing

Many also offer design consulting, cross-platform experience design, content writing, branding, and development.

How long does it take to complete a UX design project?

A UX design project takes about 4-6 weeks for a simple digital design with minimal functions and features. In contrast, an enterprise build or SaaS app can take over 20 weeks due to scale and complexity. 

The final timeline will depend on the complexity of your digital design, features, and functions, development method (Agile or Waterfall), feedback loop, and existing user data. Below is an estimated timeline of the UX process: 

  • Discovery and UX research: 1-4 weeks 
  • Information architecture and user flow: 2-6+ weeks 
  • Wireframing and prototyping: 3-5+ weeks 
  • Usability testing: 2-4 weeks 
  • Iteration and refinement: 2-6 weeks 
  • Development handoff: 3-8 weeks 

How much do UI/UX services cost?

The cost of UI/UX design services ranges between $300 and $1,500+ per screen or $25-$200 per hour. The actual price will depend on project type (website design, mobile app design, or product design), feature and design complexity, UX strategy, industry-specific requirements, and the UI/UX design company’s location. 

Below is the average rate of UI/UX design companies around the world: 

Region Average Hourly Rate
North America $75-$250
Western Europe $80-$180
Australia $60-$170
Eastern Europe $45-$90
South America $30-$85
South Africa $20-$80
Asia $25-$60

Based on the hourly rates, here’s how much you can expect to spend on UI/UX design, depending on the project

Project Price Range
Website design
  • Small websites (5-8 pages): $2,500-$8,000
  • Mid-sized websites (10-20 pages): $8,000-$25,000 
  • Enterprise portals: $25,000-$150,000+
Mobile app design
  • MVP (10-20 screens): $6,000-$25,000 
  • Fully designed app (40-100 screens): $25,000-$150,000+
eCommerce UI/UX
  • Small stores: $5,000-$20,000 
  • Marketplaces: $20,000-$150,000+ 
Product design for startups $3,000-$15,000, often used to test the product’s feasibility on the market and to attract investors 
Enterprise-level design

Starts at $500,000 and includes multi-product ecosystems, multicultural design systems, and long-term maintenance. 

 

What factors impact the cost of UI/UX design?

Beyond project scope and complexity, factors like design iterations, turnaround time, compatibility requirements, and ongoing maintenance can impact the overall cost of a UI and UX project. Here’s how each item may add to the overall billing: 

  • Extra design revisions: Additional 10%-25% of the initial costs for every round 
  • Paid tools, plugins, and stock assets: 5%-15%  
  • Cross-platform compatibility: 20%-30% 
  • Fast turnaround timelines: 10%-50%  
  • Ongoing optimization and maintenance: 10%-25% 

What is the difference between a UI design agency and a UX design agency?

The difference between a UI design agency and a UX design agency is their focus. A UX designer prioritizes how the product works and feels, such as user flow and wireframes. On the other hand, a UI designer manages how the interface looks and behaves, including the color scheme and typography. 

You can think of a UX as the architect designing the blueprint and the UI as the interior designer, shaping what people see and interact with day-to-day. 

Here are more details on their differences: 

User Interface Design User Experience Design
  • User research and user personas 
  • Usability testing and analysis 
  • User journey maps 
  • Information architecture 
  • Sitemaps, wireframes, and prototypes 
  • User flows 
  • Page layout 
  • Interactive elements (e.g., buttons and menus) 
  • Design system (e.g., color scheme and typography) 
  • Mockups 
  • Graphic design, motion design, and illustrations

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