Top Mobile App Development Companies in uk
The United Kingdom, being one of the major hubs of Information Technology, hosts a wide range of mobile app development service providers. To help businesses make informed decisions, we have compiled a list of over 400 thoroughly reviewed and verified mobile app development companies in the UK, maintaining an impressive average client rating of 4.6. At TopDevelopers.co, we recognize how essential it is for enterprises, startups, and SMEs to find a reliable company for their app development projects. Our team continuously analyzes app development companies based on team strength, infrastructure, technical resources, reliability, work ethics, industry experience, and domain expertise. This list empowers you to choose a mobile app developers in the UK who can deliver quality solutions aligned with your goals, timeline, and budget. If you’re looking to work with individual developers instead of an agency or company, hire app developers through Toptal’s network of vetted talent.
List of the Best App Development Companies in UK | Top Mobile App Developers in UK
417 Companies | Last Updated 14 December, 2025
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Buyer's Guide
Why Choose mobile app development company in UK to build an application?
You can find plenty of reasons why partner with app development companies in the UK for your projects.
User-Friendly Mobile Applications
First, leading app development companies in the UK are efficiently delivering the best quality and user-friendly mobile applications.
Excellent Expertise
If you partner with an elite group of top mobile app development companies in the UK, you get vetted engineers who are experts in not just building high-quality mobile applications but also delivering industry-specific applications with expertise.
Better Collaboration
Hiring mobile app developers in the UK will ensure better collaboration, resulting in better project outcomes.
Seamless Development Services
A good agency helps its clients comprehensively. A reliable development company in the UK helps you create a mobile app from scratch, customize, modify, redesign, or upgrade your existing mobile app, and even help you with relaunching or marketing your app.
Faster Time to Market
Partnering with an app development company in the UK will help you gain competitive advantages by helping you launch your app faster and market it quickly. It will ensure you gain traction and stay competitive in the market.
How do I hire the best mobile app developers in the UK?
- Select the app development company you want to partner with or hire developers with.
- Explore their portfolios and clients' testimonials on site. (You can also explore clients' testimonials and portfolios for listed companies on TopDevelopers.co).
- Decide the type of developers you want (Android, iOS, or cross-platform).
- Take interviews of developers you want to hire.
- Decide which developer you find suitable for your projects. And based on your preferences, you can go with hiring.
Questions to ask before Hiring Mobile App Developers in the United Kingdom?
Even though there's no limit to asking questions, prepare a list of questions and ask your app developers before you hire them.
- How much does a mobile app development cost?
- How long does it take to build a Native and cross-platform app?
- Should I build Native or cross-platform applications?
- What approach do you take to build a mobile app?
- How do you manage app development projects?
- What development methodologies do you use for project development?
- How many years of experience do you have in mobile app development?
- Which programming language are you proficient in?
- What types of mobile applications have been built?
- Can I see some of your projects that you built in the past?
- What development platforms do you use to build mobile applications?
- How will you ensure the timely delivery of projects?
- What testing approach do you use to ensure the quality of the projects?
- What measures do you suggest to check the success of the projects?
- What communication channel do you use to communicate with clients?
Frequently Asked Questions
Mobile app development companies in the UK offer numerous services.
- Mobile app consulting
- Custom app development
- Cross-platform app development
- Mobile app design
- Industry-specific application development
- App Integration services
- Support and maintenance services for mobile app
The cost to build a mobile application will vary depending on your project type. For example, if you build standard mobile applications, the cost will be between £10,000 and £20,000; however, if you have semi-complex or medium-sized application to build in the UK, it will cost you around £20,000 to £150,000. For enterprise-level applications, you may spend £100,000 to £500,000.
According to Topdevelopers.co, the average cost of building a quality mobile app in the UK with all modern features and functionalities will range between £150,000 to £400,000.
It depends on the type of developers you choose to hire in the UK. For example, if you wish to hire junior developers, it will cost you around £30 to £50 per hour, and mid-senior level developers will cost you between £50 to £100. In comparison, the senior developers with specific skills may range between £80 to £200.
In the UK, the development time for a mobile app ranges between 2 months to a year or more, depending on app complexity, number of platforms, development approach, design complexity, developers' location, development team expertise, and team size.
The average development time by app type looks like-
- A simple app with basic functionality takes 2-4 months to build
- Mid-sized app with moderate features takes 4-8 months to develop
- The engineering process for a complex app with advanced features takes 8-12 months or more.
The prominent mobile app development companies in the UK are using the following technologies and trends to build modern applications.
- Technologies like React Native and Flutter for cross-platform development
- PWAs to offer native app-like functionality
- AI/ML, AR/VR, Blockchain, and IoT integration for complex, advanced app development
- 5G technology, cloud, and analytics technology for high-performance
- Giving space to low-code or no-code platforms
UK mobile app developers handle data privacy by considering the following things during app development:
- Adhering to GDPR, which requires developers to be transparent about data collection, usage, processing, safeguarding, and handling, is crucial for maintaining user trust and avoiding legal issues.
- Comply with guidelines provided by the Information Commissioner's Office (ICO) for prioritizing "privacy by design" throughout the app development process.
Mostly yes. There are app development companies in UK that work with flexible time depending on their client’s demand or preference. Nevertheless, it is highly recommended that you should discuss the matter with the app development company for any specific time-zone requirement.