Top 100 Cross Platform App Developers in the United Kingdom

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Top 100 Cross Platform App Developers in the United Kingdom

The Best of December 2024

Looking for a top cross platform mobile app development company in the United Kingdom?

Cross-platform mobile applications have benefits that outweigh those of native applications if your users interact with your business on both Android and Apple products. Cross platform app development entails building a mobile app that’s compatible with multiple operating systems. 

Jump to Most Reviewed Companies

List of the Best United Kingdom Cross Platform Mobile App Development Companies

  • 1
    (21 Reviews) 5.0
    • Timeliness

      5.0
    • Service Excellence

      5.0
    • Value

      4.9
    • Would Recommend

      5.0
    • $10,000+
    • 50 - 249 employees
    • London, England
    Synergy Labs is a mobile application development firm. They are in Hollywood, Florida; Miami, Florida; New York, New York and Dubai, United Arab Emirates and have a midsize team. The firm specializes in Mobile App Development, UX/UI Design, IT staff augmentation, Custom Software Development, and more.
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    Industries

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  • 2
    (156 Reviews) 4.8
    • Timeliness

      4.7
    • Service Excellence

      4.7
    • Value

      4.8
    • Would Recommend

      4.8
    • $5,000+
    • 250 - 999 employees
    • London, England

    Konstant Infosolutions is a mobile app and web developer that focuses on global technology and innovation. Founded in 2003 and headquartered in Jaipur, Rajasthan, their 170+ professionals are leaders in software solutions and cutting-edge technologies.

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    Clients

    • United Nations
    • Volkswagen
    • Stanley Connect
    • Delmonte

    Industries

  • 3
    (99 Reviews) 4.9
    • Timeliness

      4.8
    • Service Excellence

      4.8
    • Value

      4.7
    • Would Recommend

      4.9
    • $5,000+
    • 250 - 999 employees
    • London, England

    GeekyAnts is a mobile app development company that's headquartered in Bangalore, India; they also have a London office. They were founded in 2006 and have about 59 employees that provide services for mobile app development, web development, and UX/UI design services to clients of all sizes in a wide array of industries. 

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    Clients

    • Siveco Romania
    • Olive Garden
    • Darden
    • KhataBook

    Industries

  • 4
    (41 Reviews) 4.9
    • Timeliness

      4.9
    • Service Excellence

      4.9
    • Value

      4.9
    • Would Recommend

      5.0
    • $10,000+
    • 50 - 249 employees
    • London, England

    Rootquotient Technologies is a Custom Software Development agency with offices in London, Toronto and India Since 2019, the team of 170 has specialized in Custom made Web Application Development, Cross-platform Mobile App Development, Artificial Intelligence, Block chain, Machine Learning and Business Intelligence solutions.

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    Clients

    • Siemens Gamesa

    Industries

  • 5
    (49 Reviews) 4.9
    • Timeliness

      4.6
    • Service Excellence

      4.8
    • Value

      4.9
    • Would Recommend

      4.9
    • $25,000+
    • 50 - 249 employees
    • Salford, England

    Digiryte is a web and mobile app development company based in Manchester, United Kingdom with another UK office in Preston. Since 2015, their team of 28 has been specializing in mobile app development, custom software development, and web development for midmarket clients. 

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    Clients

    • NHS

    Industries

  • 6
    (28 Reviews) 4.9
    • Timeliness

      4.9
    • Service Excellence

      4.9
    • Value

      4.9
    • Would Recommend

      5.0
    • $25,000+
    • 10 - 49 employees
    • London, England

    STAKK is a London-based mobile app company founded in 2020. With fewer than 50 employees, they specialize in mobile app development, web development, and UX/UI design for clients that work in various industries, such as IT, business services, and the government.

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    Clients

    • The British Museum

    Industries

  • 7
    (27 Reviews) 4.7
    • Timeliness

      4.6
    • Service Excellence

      4.7
    • Value

      4.6
    • Would Recommend

      4.8
    • $5,000+
    • 50 - 249 employees
    • London, England

    Established in 2011, iConnect info solutions pvt ltd is a web development firm. They are headquartered in Navi Mumbai, India and London, United Kingdom and have a small team. Their services include web development, IT staff augmentation, mobile app development, and cloud consulting & SI.

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    Industries

  • 8
    (24 Reviews) 5.0
    • Timeliness

      5.0
    • Service Excellence

      5.0
    • Value

      5.0
    • Would Recommend

      5.0
    • $10,000+
    • 250 - 999 employees
    • Barking, England

    Webskitters LLC is a software company headquartered in Miami, Fla. Founded in 2010, Webskitters LLC has a team of around 125 employees who specialize in web development, mobile app development, and mobile app modernization, primarily for small business clients.

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    Clients

    • Mercedes-AMG

    Industries

  • 9
    (15 Reviews) 5.0
    • Timeliness

      4.9
    • Service Excellence

      5.0
    • Value

      5.0
    • Would Recommend

      4.9
    • $10,000+
    • 10 - 49 employees
    • Bristol, England

    Morrow formerly known as App Sapiens is a development firm based in Bristol was founded in 2019. With less than 10 members on their team, they offer web and mobile app development as well as IT strategy consulting assistance to small businesses, using languages such as JavaScript and frameworks such as React Native, NodeJS, and ReactJS.

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    Clients

    • Ownable

    Industries

  • 10
    (21 Reviews) 4.9
    • Timeliness

      4.9
    • Service Excellence

      4.8
    • Value

      4.9
    • Would Recommend

      4.9
    • $25,000+
    • 50 - 249 employees
    • London, England

    Xenia Tech is a development agency founded in 2017 with fewer than 50 members. Based in Da Nang, Vietnam, they are experts in web development, mobile app development, and web design for small businesses in the fields of IT, business services, and advertising.

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    Clients

    • nClud agency

    Industries

  • 11
    (34 Reviews) 4.8
    • Timeliness

      4.4
    • Service Excellence

      4.7
    • Value

      4.7
    • Would Recommend

      4.9
    • $50,000+
    • 10 - 49 employees
    • York, England

    The Distance App Developers is a mobile app development company based in London with an additional office in York, United Kingdom. Founded in 2009, the team of 24 specializes in mobile app development, UX/UI design, and application management and support. They work primarily with midmarket clients in the advertising and marketing, business services, and education industries.

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    Clients

    • LeShuttle
    • NHS
    • Bentley Motors
    • AstraZeneca

    Industries

  • 12
    (35 Reviews) 4.9
    • Timeliness

      4.8
    • Service Excellence

      4.9
    • Value

      4.6
    • Would Recommend

      5.0
    • $10,000+
    • 50 - 249 employees
    • London, England

    Thoughtbot is a web and mobile app development company based in Boston, MA with offices in Austin, San Francisco, New York, Raleigh, Washington D.C, and London. Since 2003, this 50+ team has delivered empowering digital solutions to enterprise-level and small companies alike.

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    Clients

    • Health Match 360

    Industries

  • 13
    (14 Reviews) 5.0
    • Timeliness

      4.9
    • Service Excellence

      5.0
    • Value

      4.8
    • Would Recommend

      4.9
    • $10,000+
    • 10 - 49 employees
    • Manchester, England

    Foresight Mobile is an end-to-end mobile development agency founded in 2016 based in Manchester, England. Run by a team of fewer than 10, they offer custom software, mobile app, and web development services to their clients.

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    Clients

    • Table.co

    Industries

  • 14
    (87 Reviews) 4.9
    • Timeliness

      4.8
    • Service Excellence

      4.9
    • Value

      4.7
    • Would Recommend

      5.0
    • $25,000+
    • 1,000 - 9,999 employees
    • London, England

    Headquartered in New York, Vention is a custom software development company with additional offices in Marietta, Ga. and Iselin, N.J. Since 2002, Vention has helped startups and fast-growing tech companies fill in their talent gap and create robust web and mobile solutions that users love. To date, Vention's talent pool includes 3500+ engineers with experience in all of the latest technologies.

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    Clients

    • IBM
    • PayPal
    • pwc
    • IC Markets

    Industries

  • 15
    (122 Reviews) 4.9
    • Timeliness

      4.8
    • Service Excellence

      4.8
    • Value

      4.6
    • Would Recommend

      4.9
    • $50,000+
    • 1,000 - 9,999 employees
    • London, England

    Andersen is an international custom software development company that, among other things, specializes in healthcare software development. Since its founding in 2007, the company has opened more than ten development centers and about ten sales offices worldwide. More than 2700 highly qualified specialists work on developing, customizing corporate IT solutions, web applications, and mobile applications. Andersen has completed over 950 projects and received hundreds of positive reviews from clients worldwide. Today the company is working on over 250 projects. Our technology stack includes .NET, C#, Java, Python, PHP, Node.js, TypeScript, Golang, C++, JavaScript, Angular, React.js, Vue.js, HTML, CSS, Java (Android), Swift / Objective C (iOS), React Native, and more. We also offer manual and automated testing, business and data analysis, UI/UX design, DevOps services, IT security management, and L1, L2, L3 support.

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    Clients

    • Samsung

    Industries

  • 16
    (15 Reviews) 5.0
    • Timeliness

      4.9
    • Service Excellence

      5.0
    • Value

      5.0
    • Would Recommend

      5.0
    • $10,000+
    • 10 - 49 employees
    • London, England

    Old.St Labs is a software development business based in London. The business, founded in 2020, has a team of more than ten that provides custom software development, mobile app development, UX/UI design, web design & development, and AI services. Old.St Labs serves small and mid-market companies in the advertising & marketing, education, financial services, health care & medical, and legal industries.

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    Clients

    • Kopona

    Industries

  • 17
    (24 Reviews) 5.0
    • Timeliness

      4.9
    • Service Excellence

      4.9
    • Value

      4.9
    • Would Recommend

      5.0
    • $5,000+
    • 10 - 49 employees
    • London, England

    Inventiff is a website development firm. Established in 2019, the small firm is headquartered in London, United Kingdom and Cluj-Napoca, Romania. Their services include web development, mobile app development, web design, ux/ui design, and more.

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    Industries

  • 18
    (23 Reviews) 5.0
    • Timeliness

      5.0
    • Service Excellence

      5.0
    • Value

      4.9
    • Would Recommend

      5.0
    • $10,000+
    • 10 - 49 employees
    • London, England

    Core Blue Ltd is a software engineering company based in London with an office in Plymouth, U.K. The company, founded in 2015, has a team of less than ten that provides custom software development, mobile app development, web development, and IoT development services to various companies.

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    Clients

    • Bank of Kigali

    Industries

  • 19
    (41 Reviews) 4.7
    • Timeliness

      4.7
    • Service Excellence

      4.7
    • Value

      4.8
    • Would Recommend

      4.8
    • $10,000+
    • 250 - 999 employees
    • London, England
    SoftProdigy is a software development company. They are located in Great Neck, New York; Great Neck, New York; London, England and Sahibzada Ajit Singh Nagar, India and have a midsize team. Their services include Custom Software Development, Mobile App Development, Artificial Intelligence, cloud consulting & SI, and more. The agency was launched in 2006.
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    Clients

    • Deloitte

    Industries

  • 20
    (14 Reviews) 4.9
    • Timeliness

      4.8
    • Service Excellence

      4.9
    • Value

      4.9
    • Would Recommend

      5.0
    • $10,000+
    • 2 - 9 employees
    • London, England

    Ingenious App Studios is a mobile app development firm based in London. Founded in 2018, their team of 8 serves clients in the internet and IT sectors. Services include web development.

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    Clients

    • MFP App

    Industries

  • 21
    (115 Reviews) 5.0
    • Timeliness

      5.0
    • Service Excellence

      5.0
    • Value

      5.0
    • Would Recommend

      5.0
    • $25,000+
    • 50 - 249 employees
    • London, England
    Founded in 2013, Empat is a midsize application development company. Their team offers Mobile App Development, Web Development, and Custom Software Development. The agency is headquartered in Kyiv, Ukraine; San Francisco, California; London, England and Miami, Florida.
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    Clients

    • We are focused on small and medium companies and startups, guiding them through all stages of development. Our clients achieve remarkable success, like Obimy with 10M+ downloads, and Monitree, built for the NHS. We deliver beyond expectations.

    Industries

  • 22
    (10 Reviews) 5.0
    • Timeliness

      4.9
    • Service Excellence

      5.0
    • Value

      4.8
    • Would Recommend

      5.0
    • $10,000+
    • 10 - 49 employees
    • Edinburgh, Scotland

    GearedApp is a software development firm based in Edinburgh, Scotland. They were founded in 2013 and have a team of 11 employees who specialize in mobile development, web development, and UX/UI design. They work mostly with small business clients in the healthcare, business services, and education industries.

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    Clients

    • NHS

    Industries

  • 23
    (79 Reviews) 4.6
    • Timeliness

      4.5
    • Service Excellence

      4.6
    • Value

      4.6
    • Would Recommend

      4.6
    • $5,000+
    • 1,000 - 9,999 employees
    • London, England

    Despite only being around since 2002, Dotsquares has nearly 1000 employees across the UK, UAE, US, Australia, India, and France. They offer a staggering variety of services, including web, app, game, and e-commerce development and IT consulting and support.

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    Clients

    • Ericsson

    Industries

  • 24
    (18 Reviews) 4.9
    • Timeliness

      4.9
    • Service Excellence

      4.9
    • Value

      4.8
    • Would Recommend

      4.9
    • $10,000+
    • 250 - 999 employees
    • London, England

    SENLA is a fast-growing software development company in 5 EU locations, founded in 2012. Our team of 600+ certified technical specialists and managers has large expertise in a full-cycle development from BA to maintenance as well as separate services like QA or UX Audit. We have successfully completed over 350 projects in FinTech, Healthcare, Manufacturing and other industries.

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    Clients

    • Abbott
    • BOSCH
    • KPMG
    • Western Union

    Industries

  • 25
    (17 Reviews) 4.9
    • Timeliness

      4.8
    • Service Excellence

      4.9
    • Value

      4.7
    • Would Recommend

      4.9
    • $10,000+
    • 2 - 9 employees
    • London, England
    App development company Binary Mango was launched in 2016. Headquartered in London, England, their small team provides Mobile App Development, Custom Software Development, Artificial Intelligence, and Blockchain.
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    Clients

    • GetLeslie

    Industries

  • 26
    (6 Reviews) 4.9
    • Timeliness

      4.6
    • Service Excellence

      4.8
    • Value

      4.3
    • Would Recommend

      4.9
    • $25,000+
    • 2 - 9 employees
    • Plymouth, England

    Elixel is an UX design company. Their small team is in Plymouth, United Kingdom. Their services include ux/ui design, mobile app development, web design, and web development. The company was established in 2012.

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    Industries

  • 27
    (12 Reviews) 5.0
    • Timeliness

      5.0
    • Service Excellence

      5.0
    • Value

      5.0
    • Would Recommend

      5.0
    • $10,000+
    • 50 - 249 employees
    • London, England

    Kernelics is a software development company founded in 2020 with over 50 employees. They provide web development, mobile app development, and AI solutions from their office in Minsk, Belarus. They work with small businesses across various industries.

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    Industries

  • 28
    (65 Reviews) 4.9
    • Timeliness

      4.8
    • Service Excellence

      4.9
    • Value

      4.9
    • Would Recommend

      4.9
    • $5,000+
    • 50 - 249 employees
    • London, England

    Mobile app development company Tapptitude has offices in Romania, the US, and London. The team of 100+ employees specializes in iOS and Android app development and offers UX/UI design, IT strategy consulting, and web development. Founded in 2013, Tapptitude mainly works with small businesses and startups in the real estate, automotive, and arts and entertainment industries.

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    Clients

    • Tenor

    Industries

  • 29
    (30 Reviews) 5.0
    • Timeliness

      4.9
    • Service Excellence

      4.9
    • Value

      4.9
    • Would Recommend

      5.0
    • $10,000+
    • 10 - 49 employees
    • London, England

    Founded in 2007, Softblues is a software development company headquartered in Lviv, Ukraine. Their team of approximately 22 employees serves small to mid-sized businesses, particularly in the e-commerce and education sectors. They specialize in custom software as well as web and e-commerce development.

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    Clients

    • Pinterest

    Industries

  • 30
    (31 Reviews) 5.0
    • Timeliness

      4.9
    • Service Excellence

      4.9
    • Value

      4.9
    • Would Recommend

      5.0
    • $5,000+
    • 10 - 49 employees
    • London, England

    Based in London, United Kingdom, Goodspeed is a website development firm. The small firm was founded in 2022. Their services include web development, custom software development, and mobile app development.

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    Industries

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