Best iOS App Development Companies in the UK for Custom Mobile Apps

3 min
Targets we’ve achieved:
Increased US Software Development Company's annually acquired clients by 400% *
Generated 50+ business opportunities for UK Architecture & Design Services Provider *
Reduced cost per lead by over 6X for Dutch Event Technology Company *
Reached out to 13,000 target prospects and generated 400 opportunities for Swiss Sports Tech Provider *
Boosted conversion rate of Ukrainian IT Company by 53.6% *
Increased US Software Development Company's annually acquired clients by 400% *
Generated 50+ business opportunities for UK Architecture & Design Services Provider *
Reduced cost per lead by over 6X for Dutch Event Technology Company *
Reached out to 13,000 target prospects and generated 400 opportunities for Swiss Sports Tech Provider *
Boosted conversion rate of Ukrainian IT Company by 53.6% *
Increased US Software Development Company's annually acquired clients by 400% *
Generated 50+ business opportunities for UK Architecture & Design Services Provider *
Reduced cost per lead by over 6X for Dutch Event Technology Company *
Reached out to 13,000 target prospects and generated 400 opportunities for Swiss Sports Tech Provider *
Boosted conversion rate of Ukrainian IT Company by 53.6% *
Increased US Software Development Company's annually acquired clients by 400% *
Generated 50+ business opportunities for UK Architecture & Design Services Provider *
Reduced cost per lead by over 6X for Dutch Event Technology Company *
Reached out to 13,000 target prospects and generated 400 opportunities for Swiss Sports Tech Provider *
Boosted conversion rate of Ukrainian IT Company by 53.6% *
Increased US Software Development Company's annually acquired clients by 400% *
Generated 50+ business opportunities for UK Architecture & Design Services Provider *
Reduced cost per lead by over 6X for Dutch Event Technology Company *
Reached out to 13,000 target prospects and generated 400 opportunities for Swiss Sports Tech Provider *
Boosted conversion rate of Ukrainian IT Company by 53.6% *
Increased US Software Development Company's annually acquired clients by 400% *
Generated 50+ business opportunities for UK Architecture & Design Services Provider *
Reduced cost per lead by over 6X for Dutch Event Technology Company *
Reached out to 13,000 target prospects and generated 400 opportunities for Swiss Sports Tech Provider *
Boosted conversion rate of Ukrainian IT Company by 53.6% *
Sergii Steshenko
CEO & Co-Founder @ Lengreo

    Introduction

    The UK is home to some of the most innovative and reliable iOS app development companies. Whether you’re a startup or an established enterprise, choosing the right development partner is key to building a successful iOS app. In this article, we explore the top UK-based companies known for delivering high-quality, user-friendly iOS applications tailored to diverse business needs.

     

    1. LenGreo

    1. LenGreo

    We help businesses navigate the digital landscape by focusing on strategies that align with their goals. While our core services center on digital marketing, including SEO, lead generation, and paid advertising, we also provide website development services that support effective front-end experiences. We are engaged in the development of applications for IOS, providing services in many countries around the world, in particular the UK. Our approach is to tailor strategies and solutions based on each client’s unique needs, working closely with them to ensure transparency and clear communication throughout the process.

    Our website development work aims to build functional, user-friendly front-end interfaces that integrate well with broader digital marketing efforts. We emphasize collaboration and adapt our services to fit into client teams, helping them lead and optimize their digital presence effectively.

     

    Key Highlights:

    • Digital marketing with focus on lead generation and SEO
    • Website development to support front-end needs
    • Tailored marketing strategies based on client strengths
    • Transparent communication and team integration
    • Ability to hold in-person meetings in Central Europe

     

    Services:

    • B2B digital marketing strategy and consulting
    • Lead generation and appointment setting
    • Search engine optimization (SEO)
    • Social media and content marketing
    • Paid advertisement services
    • Demand generation
    • Website development services

     

    Contact and Social Media Information:

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    Biological Age Blood Testing Kit
    2. Glance

    2. Glance

    Glance is a UK-based company that focuses on delivering native iOS applications with a strong emphasis on UX and UI design principles. Their approach integrates user behavior insights into the design and development process, allowing them to build mobile apps with consistent user flows and scalable infrastructure. They also support full-ecosystem development by creating backend systems and responsive web applications that integrate with mobile products.

    The company structures its process around strategic roadmapping, UI/UX design, and mobile engineering. Their work includes frontend development, native iOS engineering, and post-launch support. Glance also focuses on continuous product optimization using performance tracking, A/B testing, and user feedback.

     

    Key Highlights:

    • Emphasis on behavioral psychology in UX design
    • Specialised teams for native iOS and Android apps
    • Backend systems designed for scale and performance
    • Post-launch services including optimisation and testing
    • Experience with web dashboards and full-platform integration

     

    Services:

    • UX and UI design for mobile apps
    • Native iOS app development
    • Backend infrastructure and API development
    • Web application and admin panel development
    • Mobile product optimisation and A/B testing
    • Strategic product planning and market validation

     

    Contact Information:

    • Website: thisisglance.com
    • E-mail: enquiries@thisisglance.com
    • Facebook: www.facebook.com/thisisglance
    • Twitter: x.com/thisisglance
    • LinkedIn: www.linkedin.com/company/glance-uk
    • Instagram: www.instagram.com/thisisglance
    • Address: 20-22 Wenlock Road, London, N1 7GU
    • Phone: +44 (0)20 3026 3293

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      3. Limeup

      3. Limeup

      Limeup is a software development company working with clients globally, including those in the UK. They focus on building custom digital products for both startups and enterprises, handling projects from early-stage MVPs to fully scaled platforms. Their team handles frontend development across different platforms and devices, making their services suitable for companies looking to launch or scale mobile apps.

      The company takes a technology-driven approach to mobile and software development, tailoring each product to client goals. While their development offerings are broad, their work includes iOS app development, product design, and ongoing product improvements for growth-focused businesses.

       

      Key Highlights:

      • Works with startups and enterprise clients
      • Offers mobile and software product development
      • Handles both MVPs and full-scale platforms
      • Global client base with UK collaboration
      • Technology-focused delivery approach

       

      Services:

      • iOS and Android app development
      • Web and software application development
      • Product design and UI/UX services
      • Digital product strategy and prototyping
      • Frontend and backend system development

       

      Contact Information:

      • Website: limeup.io
      • E-mail: hello@limeup.io
      • Facebook: www.facebook.com/limeup.io
      • LinkedIn: www.linkedin.com/company/limeup
      • Address: Queens House, 180 Tottenham Ct Rd, London W1T 7PD
      • Phone: +44 20 8135 6600
      4. Enozom

      4. Enozom

      Enozom is a development company based in Egypt, providing web and mobile software solutions for companies across Europe, including the UK. They act as a nearshore technology partner, offering frontend and backend development services. Their team builds responsive websites and mobile applications with a focus on user experience and functionality.

      Enozom offers flexible collaboration models, making it suitable for companies needing short-term or long-term development support. Their services cover the full cycle of development from UI/UX design to mobile app development and software testing, helping clients manage both standalone products and integrated systems.

       

      Key Highlights:

      • Nearshore partner with UK-facing services
      • Offers team extension for long- and short-term needs
      • Focused on both web and mobile development
      • Covers full project lifecycle, including testing
      • Works with companies across various industries

       

      Services:

      • iOS and Android mobile app development
      • Web development and responsive web design
      • UI/UX design for mobile and web platforms
      • Software testing for web and mobile apps
      • Team extension for product development projects

       

      Contact Information:

      • Website: enozom.com
      • E-mail: info@enozom.com
      • Facebook: www.facebook.com/Enozom
      • Twitter: x.com/enozom
      • LinkedIn: www.linkedin.com/company/enozom-software
      • Instagram: www.instagram.com/enozom
      • Address: 336 El Giesh Road, Royal Plaza, Building D, Mezzanine floor, Gleem 21500, Alexandria, Egypt
      • Phone: +203 5844234
      5. Sonin

      5. Sonin

      Sonin is a UK-based company that focuses on building mobile and digital products for iOS, Android, and the web. Their approach centers around a mobile-first strategy, with development teams working closely with clients from initial concept through delivery. The company focuses on building apps that match client needs while keeping up with changes in technology and platform standards.

      They work with businesses across different sectors, supporting iOS frontend development as part of their broader digital product services. Collaboration is a key part of their process, and they adapt to client goals during each project phase. Their work spans both user interface design and technical implementation.

       

      Key Highlights:

      • Focuses on mobile-first solutions
      • Works across iOS, Android, and web platforms
      • Offers collaborative and adaptive project workflows
      • Supports full product lifecycle from design to launch
      • Involved in cross-platform product development

       

      Services:

      • iOS app development
      • Frontend development for mobile apps
      • Product design and UX/UI services
      • Web and cross-platform development
      • Strategy and planning for digital products

       

      Contact Information:

      • Website: sonin.agency
      • E-mail: info@sonin.agency
      • Facebook: www.facebook.com/soninapps
      • LinkedIn: www.linkedin.com/company/sonin
      • Instagram: www.instagram.com/soninapps
      • Address: Sonin, 34 Bell Street, Reigate, Surrey, RH2 7SL
      • Phone: 01737 45 77 88
      6. Red C

      6. Red C

      Red C is a London-based development company offering web and mobile app development services. Their experience includes building iOS applications along with enterprise-grade systems. They have worked in the mobile space since early adoption phases and continue to deliver frontend development for various business types.

      The company combines technical expertise with structured development processes. They support clients through design, development, and post-launch stages. Their projects include both standalone mobile apps and integrated digital systems.

       

      Key Highlights:

      • Based in London with a history in iOS development
      • Uses defined processes throughout the development lifecycle
      • Builds apps for multiple platforms including iOS
      • Offers post-launch support and updates

       

      Services:

      • iOS mobile app development
      • Frontend design and development
      • Web systems and application development
      • Project planning and execution
      • Ongoing support for digital products

       

      Contact Information:

      • Website: www.red-c.co.uk
      • E-mail: info@red-c.co.uk
      • Facebook: www.facebook.com/RedCLondon
      • Twitter: x.com/redclondon
      • LinkedIn: www.linkedin.com/company/red-c—mobile-app-development
      • Instagram: www.instagram.com/redclondon
      • Address: 1st Floor, Moor Place 1 Fore Street Avenue London EC2Y 9DT
      • Phone: 020 3397 9028
      7. Novoda

      7. Novoda

      Novoda is a mobile product engineering company working with clients across various industries. They build native mobile apps, with a focus on both technical quality and team collaboration. Their approach includes frontend development for iOS, delivered through small, cross-functional teams.

      They support long-term partnerships, providing technical input during product planning and continuing through development. In addition to iOS app engineering, they also help with backend integration, delivery pipelines, and release strategies.

       

      Key Highlights:

      • Specialises in native mobile development
      • Uses small cross-functional engineering teams
      • Works on long-term mobile projects
      • Offers frontend and backend integration support
      • Collaborates on delivery planning and release

       

      Services:

      • iOS app development
      • Frontend engineering for mobile platforms
      • Product planning and technical consulting
      • Backend and API integration
      • Support for release and delivery processes

       

      Contact Information:

      • Website: novoda.com
      • E-mail: carl.harroch@novoda.com
      • Twitter: x.com/novoda
      • LinkedIn: www.linkedin.com/company/novoda
      • Address: 86-90 Paul Street London EC2A 4NE United Kingdom Reg. SC347444 VAT. GB 984 2525 93
      • Phone: 07725721005
      8. Studio Graphene

      8. Studio Graphene

      Studio Graphene is a UK-based digital product company that designs and builds mobile and web applications, including iOS solutions. They focus on combining frontend development with emerging technologies such as AI and data science. Their process includes early-stage discovery, interface design, and product delivery. Their approach supports fast prototyping and iterative testing, which helps adapt products to business needs.

      They handle projects from initial planning through to frontend build and delivery. Their team uses agile methods to align technical execution with user experience goals. In addition to iOS app interfaces, they also create cross-platform digital products that support wider organisational requirements.

       

      Key Highlights:

      • Focus on frontend development using AI and data science
      • Covers full product lifecycle from discovery to delivery
      • Supports fast iteration and prototyping
      • Designs interfaces for both mobile and web apps
      • Uses agile processes for flexible project execution

       

      Services:

      • iOS app interface design and development
      • Frontend development for digital products
      • Product discovery and research
      • Web and cross-platform application development
      • UX and UI design

       

      Contact Information:

      • Website: www.studiographene.com
      • E-mail: hello@studiographene.com
      • Linkedin: uk.linkedin.com/company/studio-graphene
      • Instagram: www.instagram.com/studiographene
      • Address: 32 Blackfriars Road London SE1 8PB
      • Phone: 020 3096 8384
      9. 3 Sided Cube

      9. 3 Sided Cube

      3 Sided Cube is a software development company that focuses on building mobile applications with a strong emphasis on social and environmental impact. They carry out all design and development work in-house, including frontend engineering for iOS and Android platforms. Their team supports clients through design, prototyping, and full-scale implementation.

      Their approach includes working closely with clients to design apps with clear use cases. Frontend development is handled by in-house teams, and they avoid outsourcing work. They also handle testing and iteration to ensure mobile apps are aligned with user expectations.

       

      Key Highlights:

      • Provides in-house iOS app development
      • Works on socially-driven digital products
      • Handles frontend design and testing
      • Avoids outsourcing or offshoring work
      • Supports full build and deployment process

       

      Services:

      • iOS mobile app development
      • Frontend development and UI design
      • Cross-platform app development
      • App testing and iteration
      • Product planning and user experience

       

      Contact Information:

      • Website: 3sidedcube.com
      • E-mail: holla@3sidedcube.com
      • LinkedIn: www.linkedin.com/company/3-sided-cube
      • Instagram: www.instagram.com/3sidedcube
      • Address: The Monument 51 Eastcheap London United Kingdom EC3M 1JP
      10. Apadmi

      10. Apadmi

      Apadmi is a UK company that builds native and hybrid mobile apps for enterprise clients. Their work includes frontend and backend development, with a focus on building solutions that connect to complex systems and platforms. Their iOS development is part of a broader service offering that includes product optimisation, data services, and integration with business systems.

      They support the full product journey, from initial development to monitoring and support after launch. Their work also includes frontend optimisation aimed at improving usability and conversion. Apadmi often works on apps that require ongoing updates and performance tracking.

       

      Key Highlights:

      • Builds native and hybrid mobile apps
      • Focuses on system integration and middleware
      • Offers frontend optimisation and conversion tracking
      • Supports post-launch app monitoring and maintenance
      • Works with large organisations and enterprise clients

       

      Services:

      • iOS frontend development
      • Hybrid app development
      • UX and UI design
      • System and platform integration
      • App monitoring and optimisation

       

      Contact Information:

      • Website: www.apadmi.com
      • E-mail: hello@apadmi.com
      • Facebook: www.facebook.com/ApadmiLTD
      • Twitter: x.com/apadmi
      • LinkedIn: www.linkedin.com/company/apadmi-ltd
      • Instagram: www.instagram.com/apadmi
      • Address: Level 9, Anchorage Two, Salford Quays, United Kingdom, M50 3YW
      • Phone: 0161 850 1300
      11. Tappable

      11. Tappable

      Tappable is a UK-based company that develops mobile and web applications for clients across different industries. Their work includes frontend development for iOS platforms, with projects ranging from connected device apps to live media systems and internal tools for venues. They work closely with clients who either have a clear plan or need help shaping their ideas into digital products.

      Their team handles design, engineering, and strategy under one structure, often acting as an extended technical department. They build interfaces for consumer and business-facing apps while integrating backend systems and connected hardware. Their process supports both early-stage prototyping and full-scale product delivery.

       

      Key Highlights:

      • Provides frontend development for iOS apps
      • Works with connected device and live media systems
      • Offers flexible collaboration from idea to delivery
      • Supports both startup and enterprise-level projects
      • Handles frontend and backend system alignment

       

      Services:

      • iOS app design and development
      • Frontend engineering for mobile and web apps
      • Web application and backend development
      • Product strategy and technical planning
      • Cross-platform integration and support

       

      Contact Information:

      • Website: www.tappable.co.uk
      • E-mail: hello@tappable.co.uk
      • LinkedIn: www.linkedin.com/company/tappableagency
      • Instagram: www.instagram.com/tappableagency
      • Address: Bedford I-lab, Priory Business Park, Stannard Way, Bedford MK44 3RZ
      • Phone: +44 123 441 4774
      12. Greenhill Digital

      12. Greenhill Digital

      Greenhill Digital is a digital design and development company that creates websites, mobile applications, and progressive web apps. Their iOS app work includes frontend development and design services supported by backend tools like API and content management systems. They focus on building mobile products that function reliably across devices and platforms.

      They also build responsive websites and maintain pattern libraries for frontend consistency. Their team supports digital product planning and works with clients to align interface design with business use cases. The company works on both short- and long-term development projects.

       

      Key Highlights:

      • Offers frontend development for mobile and web
      • Builds iOS and Android apps with backend tools
      • Designs progressive web apps
      • Develops responsive UI elements and libraries
      • Supports full product design and delivery

       

      Services:

      • iOS and Android app development
      • Frontend development for web and mobile
      • UI design and interface planning
      • Progressive web app development
      • API and CMS integration

       

      Contact Information:

      • Website: www.greenhilldigital.com
      • E-mail: info@greenhilldigital.com
      • Instagram: www.instagram.com/greenhill01
      • Address: Greenhill, 4 Claremont Place, Glasgow, G3 7YR
      • Phone: +44 (0)141 332 7051
      13. Zudu

      13. Zudu

      Zudu is a digital agency that provides mobile and web development services with a structured approach to planning, design, and build. Their iOS development process starts with project discovery and includes frontend prototyping, interface design, and iterative engineering. They focus on creating mobile apps that align with client goals and user requirements.

      They work through stages such as wireframing, prototyping, development, and quality assurance. Their team uses agile development methods and conducts testing before launch. Zudu also offers ongoing support services like optimisation, hosting, and analytics after the app goes live.

       

      Key Highlights:

      • Provides frontend design and development for iOS
      • Uses structured planning and prototyping stages
      • Applies agile development and regular testing
      • Offers post-launch support and optimisation
      • Works with both startups and established companies

       

      Services:

      • iOS frontend development
      • UI/UX design and prototyping
      • Web and cross-platform app development
      • QA testing and deployment
      • Post-launch analytics and maintenance

       

      Contact Information:

      • Website: zudu.co.uk
      • E-mail: contact@zudu.co.uk
      • Facebook: www.facebook.com/ZuduDigital
      • Twitter: x.com/ZuduDigital
      • LinkedIn: www.linkedin.com/company/zudu
      • Instagram: www.instagram.com/zududigital
      • Address: River Court, 5 West Victoria Dock Road, Dundee, DD1 3JT
      • Phone: +44 (0) 1382 690 080
      14. AspireEdge

      14. AspireEdge

      AspireEdge is a UK-based company focused on web and mobile app development. They handle frontend development for iOS apps alongside other project requirements. Their team works collaboratively to generate ideas and strategies, helping clients shape their digital products to meet business needs. They provide services from concept to delivery.

      The company supports clients at various stages of development, aiming to align the technical work with the client’s goals. Their approach involves integrating design, development, and strategy to build functional front-end experiences on mobile platforms.

       

      Key Highlights:

      • Provides frontend development for iOS apps
      • Supports full project lifecycle from ideation to delivery
      • Combines design and development with strategic planning
      • Works with startups and established businesses
      • Focuses on aligning development with client goals

       

      Services:

      • iOS app development
      • Web application development
      • UI/UX design and frontend engineering
      • Strategy and project consultation
      • Support and maintenance

       

      Contact Information:

      • Website: www.aspireedge.com
      • E-mail: Sales@aspireedge.com
      • Facebook: www.facebook.com/aspireedge
      • Twitter: x.com/aspire_edge
      • LinkedIn: www.linkedin.com/company/aspireedge-solutions-private-limited
      • Address: 18 St Gorges Avenue, Forest Gate, E78HP London, UK
      • Phone: +44 20 38070597
      15. Coderus

      15. Coderus

      Coderus is a UK software and app development company serving clients from startups to large enterprises. They offer frontend development for iOS apps as part of a full-service approach including consultancy, design, development, testing, and ongoing support. Their work spans all stages of app development with a focus on delivering solutions tailored to client requirements.

      Their process involves combining technical expertise with strategic guidance, ensuring frontend interfaces are well-integrated with backend systems. Coderus emphasizes clear communication and alignment with business goals throughout the development lifecycle.

       

      Key Highlights:

      • Full-service software and app development
      • Frontend development for iOS and web platforms
      • Offers consultancy and strategy support
      • Provides QA, testing, and maintenance services
      • Works with startups and large enterprises

       

      Services:

      • iOS app design and development
      • Frontend engineering
      • Project consultancy and strategy
      • Quality assurance and testing
      • Support and maintenance services

       

      Contact Information:

      • Website: www.coderus.com
      • E-mail: contact.us@coderus.com
      • Facebook: www.facebook.com/coderus
      • Twitter: x.com/coderus
      • LinkedIn: www.linkedin.com/company/coderus-limited
      • Instagram: www.instagram.com/coderusltd
      • Address: Ross Building Adastral Park Martlesham Heath Suffolk IP5 3RE
      • Phone: +44 1473 316 868

      Conclusion

      Choosing the right iOS app development company in the UK depends on your specific needs, project goals, and the kind of partnership you want. Whether you’re looking for expert front-end development, a full-service digital approach, or support in growing your digital presence, there are a variety of companies with different strengths to consider. Understanding what each company offers can help you find a good fit to bring your app ideas to life efficiently and effectively.