Top 100 Cross Platform App Developers in London
The Best of December 2025Looking for a top cross platform mobile app development company in London?
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. Cross-platform, or hybrid apps, use a single codebase, which means you don’t need separate apps with separate technologies to appeal to customers using Android or iOS. Because of this single codebase, cross platform apps are less costly to create and maintain.
Most hybrid apps will use either Ionic or React as a development framework. React is a JavaScript framework that allow apps to support Android and iOS natively, while Ionic uses JavaScript, HTML5, CSS, and Sass for hybrid apps, desktop apps, and progressive web apps. Choosing an app developer with the right skillset to fit the technology framework your app needs is a good place to start when interviewing app development companies.
To assist you in your search for a partner, we’ve compiled this list of the top cross platform app developers in London. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
>List of the Best London Cross Platform Mobile App Development Companies
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181$5,000+50 - 249 employeesLondon, EnglandHeadquartered in London, England, SCube is a midsize website development company. Established in 2005, the team specializes in Web Development, E-Commerce Development, and Mobile App Development.Read More
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182$10,000+10 - 49 employeesLondon , EnglandRead More
Danger Farms is a London-based digital agency founded in 2012. With their team of over 10 people, they provide custom software development, digital strategy, and UX/UI design solutions primarily to enterprise-level clients. They have experience in business and financial services, as well as retail.
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Lloyd's RegisterIndustries
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183$5,000+10 - 49 employeesLondon, EnglandCosonas Ltd, an IT strategy consulting company, is based in London, England. They offer IT strategy consulting, IT staff augmentation, Custom Software Development, Web Development, and more and were founded in 2020.Read More
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184$1,000+10 - 49 employeesLondon, EnglandRead More
DevsStream is a custom software development firm founded in 2020. The company specializes in custom software development, mobile app development, web development, e-commerce development, and more and has a small team. The company is headquartered in Dhaka, Bangladesh.
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185$5,000+10 - 49 employeesLondon, EnglandEstablished in 2015, Advance Web Software Limited is an IT staff augmentation company. Located in London, England and Vadodara, India, the team offers IT staff augmentation and Web Development.Read More
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186$1,000+50 - 249 employeesLondon, EnglandMidsize UX agency Ambala IT, is headquartered in Dhaka, Bangladesh; London, England and Kasoa, Ghana. They offer UX/UI Design, IT strategy consulting, Custom Software Development, Web Development, and more and were founded in 2016.Read More
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187$5,000+50 - 249 employeesLondon, EnglandMobile app development firm SDNA Tech is located in London, England. Their services include Mobile App Development and Blockchain.Read More
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188$5,000+250 - 999 employeesLondon, EnglandLaunched in 2003, Konstant Infosolutions is an application development firm. The midsize Jaipur, India-based team offers Mobile App Development, Artificial Intelligence, UX/UI Design, and Web Development.Read More
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United Nations Volkswagen Stanley Connect DelmonteIndustries
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189$25,000+50 - 249 employeesAmsterdam, NetherlandsSynergy Labs is an app development company. The midsize Hollywood, Florida-based agency was launched in 2020. Their services include Mobile App Development, Custom Software Development, Artificial Intelligence, Generative AI, and more.Read More
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190$5,000+10 - 49 employeesLondon, EnglandSquid40 is an UX agency. Their small team of employees is located in București, Romania and London, England. Their team offers UX/UI Design and Mobile App Development.Read More
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191$10,000+10 - 49 employeesLondon, EnglandLaunched in 2020, Cloudini is a cloud consulting & SI company. The team provides cloud consulting & SI and IT staff augmentation.Read More
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192Undisclosed250 - 999 employeesMünchen, GermanyCustom software development firm Star is located in Sunnyvale, California and San Francisco, California. Their services include Custom Software Development and Mobile App Development.Read More
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193$5,000+10 - 49 employeesLondon, EnglandHeadquartered in Wembley, United Kingdom, Lexer Solutions is a small IT staff augmentation company. Founded in 2023, the team specializes in IT staff augmentation, custom software development, web development, mobile app development, and more.Read More
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194Undisclosed10 - 49 employeesLondon, EnglandUntapped is a branding company established in 2017. They are based in London, England and have a small team. The firm provides Branding, Search Engine Optimization, UX/UI Design, Logo, and more.Read More
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195Undisclosed250 - 999 employeesLondon, EnglandWeb development company Team In India was launched in 2002. The team specializes in Web Development and Mobile App Development.Read More
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196$50,000+50 - 249 employeesL'viv, UkraineRead More
Unicrew is a software development firm located in L'viv, Ukraine; Ormond Beach, Florida and London, England. The midsize company was founded in 2012. Their team focuses on Custom Software Development, Web Development, IT staff augmentation, and Mobile App Development.
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Jack Cooper Transport Bigfood Group Booked It Open Room Inc.Industries
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197$10,000+50 - 249 employeesBarcelona, SpainHalo Lab is a midsize branding agency headquartered in Dubai, United Arab Emirates; New York, New York; 08, Andorra and Odesa, Ukraine. They offer Branding, Web Design, UX/UI Design, Graphic Design, and more and were established in 2013.Read More
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Auth0Industries
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198$1,000+10 - 49 employeesLondon, EnglandLaunched in 2006, Design Direct UK, a small web development firm, is headquartered in London, England. Their services include Web Development and Mobile App Development.Read More
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199$250,000+1,000 - 9,999 employeesLondon, EnglandInfostretch is a large Application Testing company headquartered in Santa Clara, California and New York, New York. Their services include Application Testing and Enterprise App Modernization.Read More
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200$25,000+10 - 49 employeesLondon, EnglandApplication development firm TAKWEN LTD is based in London, England and Dubai, United Arab Emirates. They specialize in Mobile App Development and Web Development and were founded in 2021.Read More
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UAE GOVIndustries
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201$50,000+50 - 249 employeesLondon, EnglandYozu is a midsize custom software development firm founded in 2013. Their team focuses on Custom Software Development and Mobile App Development.Read More
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202$25,000+2 - 9 employeesLondon, EnglandSmall app development company Nyble, is based in London, England. Their services include Mobile App Development and Web Development.Read More
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203$10,000+10 - 49 employeesLondon, EnglandE-done is an app development firm established in 2017. Based in Zaporizhzhia, Ukraine and New York, New York, the team offers Mobile App Development and Blockchain.Read More
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204Undisclosed10 - 49 employeesLondon, EnglandIntelligent Mobile is a web design company established in 2004. Their team specializes in Web Design and Mobile App Development.Read More
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205$10,000+10 - 49 employeesLondon, EnglandInventiff. Is a website development company founded in 2020. They are based in Cluj-Napoca, Romania and London, England and have a small team. The company specializes in Web Development, Mobile App Development, UX/UI Design, and Low/No Code Development.Read More
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206$10,000+50 - 249 employeesLondon, EnglandMindCrew Technologies is a small software development firm. The Indore, India-based firm was established in 2011. Their team offers custom software development, Artificial Intelligence, blockchain, application management & support, and more.Read More
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207$10,000+250 - 999 employeesDüsseldorf, GermanyFounded in 2009, Gap Dynamics is a web development firm. The firm specializes in Web Development and Mobile App Development.Read More
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208$5,000+10 - 49 employeesLondon, EnglandFounded in 2016, Axonian is a small Blockchain company. Their services include Blockchain and Mobile App Development.Read More
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209$1,000+10 - 49 employeesLondon, EnglandAR/VR development company VisEngine Digital Solutions is in London, England and North Arlington, New Jersey. Founded in 2009, the team offers AR/VR development and Interior Design.Read More
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210$25,000+250 - 999 employeesLondon , EnglandEqual Experts is a custom software development firm launched in 2007. The firm focuses on Custom Software Development and Mobile App Development.Read More
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