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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31$100,000+250 - 999 employeesLondon, EnglandApadmi is a mobile app development company. The midsize Salford, England-based agency was established in 2009. Their services include Mobile App Development, Mobile & App Marketing, Web Development, and AR/VR development.Read More
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BBCIndustries
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32$25,000+50 - 249 employeesLondon, EnglandRead More
Tech Alchemy is a software development studio based in London. Founded in 2016, they have around 150 employees who provide startups and small to medium-sized businesses with custom software development, blockchain development, and web & mobile app design and development. Services include prototyping, discovery, MVP development, and Web3 digital transformation
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Ocean BottleIndustries
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33$25,000+50 - 249 employeesRickmansworth, EnglandRead More
Website development company Light IT Global was established in 2006. The midsize Rickmansworth, England-based team focuses on Web Development, Custom Software Development, Mobile App Development, Artificial Intelligence, and more.
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PfizerIndustries
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34$25,000+50 - 249 employeesLondon, EnglandIoT development company CimpleO Group was established in 2012. Their midsize team is based in Hong Kong SAR, Hong Kong; Bangkok, Thailand and London, England. CimpleO Group focuses on IoT development, Web Development, Web Design, Custom Software Development, and more.Read More
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American Chemical SocietyIndustries
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35$5,000+10 - 49 employeesLondon, EnglandRead More
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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36$25,000+50 - 249 employeesLondon, EnglandRead More
DotCode is a design and development company based in Lviv, Ukraine, and founded in 2018. Their team of more than 10 provides web development, web design, and e-commerce development solutions for clients in the fields of hospitality, advertising, and financial services.
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Ply LCM Digital Fly Jets ThriveIndustries
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37$10,000+10 - 49 employeesLondon, EnglandRead More
Mobile application development firm CubeZoo was established in 2011. In Johannesburg, South Africa and London, England, their small team specializes in Mobile App Development, Web Development, Artificial Intelligence, UX/UI Design, and more.
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Vodacom BMW Liberty Life Signal HillIndustries
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38$10,000+50 - 249 employeesNew Delhi, IndiaSoftware development company TechnoYuga Soft Pvt. Ltd. Was founded in 2019. Their midsize team is located in New Delhi, India; Surat, India; Toronto, Canada and Orland Park, Illinois. TechnoYuga Soft Pvt. Ltd. Specializes in Custom Software Development, Mobile App Development, Artificial Intelligence, and UX/UI Design.Read More
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Gfacility Akasha Air mfine DecathlonIndustries
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39$10,000+10 - 49 employeesLondon, EnglandRead More
CodeLeap is a London, United Kingdom-based application development firm. The small team specializes in mobile app development, web development, Artificial Intelligence, AR/VR development, and more. The company was founded in 2019.
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40$10,000+10 - 49 employeesLondon, EnglandApplication development company Foresight Mobile is based in Manchester, England; Birmingham, England and London, England. They offer Mobile App Development, Custom Software Development, Web Development, and API Development and were launched in 2016.Read More
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Table.co Swrve Levi Strauss EAIndustries
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41$50,000+10 - 49 employeesLondon, EnglandCustom software development firm Clock Limited was established in 1997. The agency offers Custom Software Development, Mobile App Development, UX/UI Design, and Web Development and has a small team. The agency is headquartered in Sarratt, England and London, England.Read More
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Riot Games Mythical Society Hearst International Tennis FederationIndustries
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42$10,000+250 - 999 employeesNovi Sad, SerbiaVega IT is a midsize software development firm established in 2008. Their services include Custom Software Development, CRM consulting and SI, Mobile App Development, E-Commerce Development, and more. The agency is headquartered in Novi Sad, Serbia; New York, New York and London, England.Read More
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43$10,000+10 - 49 employeesLondon, EnglandLaunched in 2014, Softblues is a small AI firm. Their services include Artificial Intelligence, Generative AI, AI Consulting, Web Development, and more. The company is headquartered in London, England; Nordhalben, Germany; New York, New York and Toronto, Canada.Read More
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PinterestIndustries
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44$5,000+50 - 249 employeesLondon, EnglandIConnect Digital Solutions Ltd is a London, England-based application development firm. They specialize in Mobile App Development, UX/UI Design, and Web Development and were launched in 2011.Read More
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45$50,000+50 - 249 employeesLondon, EnglandRead More
Supercharge is a digital production firm that is headquartered in Budapest, Hungary with a second office in London. Founded in 2010, Supercharge's team of more than 100 employees specializes in web and mobile app development. The firm also offers UI/UX design services to its clients.
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46$10,000+50 - 249 employeesAhmedabad, IndiaNimblechapps Pvt. Ltd. Is a mobile app development company headquartered in Ahmedabad, India; Austin, Texas and London, England. They offer Mobile App Development and Web Development and were established in 2014.Read More
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Strom MotorsIndustries
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47$25,000+10 - 49 employeesLondon, EnglandIn London, England, Contic is an application development firm. They provide Mobile App Development, Web Development, Artificial Intelligence, UX/UI Design, and more and were founded in 2021.Read More
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48$10,000+50 - 249 employeesLondon, EnglandRead More
SovTech is a custom software development company based in Johannesburg with offices in London and Nairobi. Founded in 2012, they work with enterprise and midmarket businesses with a focus on clients in the financial services industry.
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DiscoveryIndustries
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49$5,000+10 - 49 employeesLondon, EnglandTH-EY, a custom software development firm, is based in London, England and Kraków, Poland. They offer Custom Software Development, UX/UI Design, Mobile App Development, Application Testing, and more and were launched in 2017.Read More
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LaunchworksIndustries
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50$25,000+10 - 49 employeesLondon, EnglandRead More
Theodo UK, founded in 2015, is a consultancy and digital development agency headquartered in London with an additional location in Paris. With a team of over 30 employees, they mainly provide mobile app development, web development, and custom software development services.
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AdmiralIndustries
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51$50,000+50 - 249 employeesLondon, EnglandThinslices Development, a website development company, is located in Iași, Romania and London, England. The midsize firm was established in 2010. Their team focuses on Web Development, Mobile App Development, and UX/UI Design.Read More
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52$100,000+10 - 49 employeesLondon, EnglandRead More
Future Platforms is a London based digital agency. Founded in 2000, Future Platforms employs a team of 39 specialists that provide e-commerce, mobile app, and wearable app development.
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Domino’s PizzaIndustries
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53$25,000+10 - 49 employeesLondon, EnglandBit Zesty is a small Application Management & Support company. Based in London, England, the firm was founded in 2009. Their team focuses on Application Management & Support, Custom Software Development, E-Commerce Development, Web Development, and more.Read More
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Oxford Medical SimulationIndustries
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54$10,000+50 - 249 employeesLondon, EnglandRead More
Snotor is a web development firm. The midsize Rīga, Latvia-based firm was founded in 2007. Their services include Web Development, Mobile App Development, UX/UI Design, IT staff augmentation, and more.
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Defero Hypefill Wellics IsobioticsIndustries
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55$25,000+10 - 49 employeesWatford, EnglandRead More
AppDrawn is a software solutions company founded in 1999. Their headquarters are in London and they have a second office in Barcelona. Across these 2 locations, they have a team of a dozen staff that do custom software development, web development, and mobile app development for small and medium-size businesses.
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AspireIndustries
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56$10,000+10 - 49 employeesLondon, EnglandKeyToTech is an application development company located in London, England; L'viv, Ukraine and London, England. The small company was launched in 2017. Their team provides Mobile App Development, Artificial Intelligence, Custom Software Development, Generative AI, and more.Read More
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Meest Post CyclingHero DonorSeeIndustries
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57$10,000+10 - 49 employeesLondon, EnglandRead More
5StarDesigners is a design agency founded in London in 2013 with more than 10 members. They are experts in UX/UI design, mobile app development, and custom software development solutions for small and medium-sized companies.
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SwikeIndustries
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58$10,000+50 - 249 employeesLondon, EnglandRead More
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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59$5,000+50 - 249 employeesLondon, EnglandRead More
WeUno is a digital agency founded in 2016 in Karachi, Pakistan. Their team of no more than 50 specializes in web development, mobile app development, and social media marketing services for clients in the fields of advertising, IT services, and e-commerce.
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Strapp x University of MichiganIndustries
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60$25,000+50 - 249 employeesCobham, EnglandMobcoder, an IT staff augmentation company, is located in Seattle, Washington; Cobham, England; Ghaziabad, India and Burnaby, Canada. The midsize company was launched in 2014. Their services include IT staff augmentation, Artificial Intelligence, UX/UI Design, BI & big data consulting & SI, and more.Read More
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General millsIndustries
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