Top 100 Cross Platform App Developers in the United Kingdom
The Best of December 2025Looking 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. 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 United Kingdom. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best United Kingdom Cross Platform Mobile App Development Companies
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61$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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62$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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63$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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64$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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65$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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66$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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67$10,000+50 - 249 employeesAberdeen, ScotlandRead More
Fabrit Global is a web app development company based in Aberdeen, U.K., with an office in Cluj-Napoca, Romania. The company, founded in 2014, has a team of more than 30 that provides web development and custom software development services. Fabrit Global serves mid-market and small companies in various industries that include financial services, hospitality & leisure, and energy & natural resources.
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Societe GeneraleIndustries
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68$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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69$50,000+50 - 249 employeesBournemouth, EnglandRead More
3 SIDED CUBE is a midsize AI Consulting company. They focus on AI Consulting, Generative AI, Web Development, Mobile App Development, and more and were launched in 2009.
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American Red Cross British Red Cross Vodafone GlastonburyIndustries
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70$10,000+50 - 249 employeesExeter, EnglandFounded in 2017, EVOQINS is an app development company. The company offers Mobile App Development, Custom Software Development, and Web Development and has a midsize team. The company is in Bengaluru, India; Muscat, Oman and Exeter, England.Read More
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Qatar FoundationIndustries
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71$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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72$1,000+250 - 999 employeesDubai, United Arab EmiratesAppsNation, a mobile app development firm, is in Los Angeles, California; Los Angeles, California; Dubai, United Arab Emirates and Dallas, Texas. The midsize team provides Mobile App Development, AR/VR development, Low/No Code Development, Custom Software Development, and more and was founded in 2016.Read More
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73$50,000+50 - 249 employeesLurgan, Northern IrelandGCD, a software development company, was launched in 1999. The midsize team offers Custom Software Development, Mobile App Development, Web Development, UX/UI Design, and more. The company is headquartered in Lurgan, Northern Ireland and Dublin 2, Ireland.Read More
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74$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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75$10,000+1,000 - 9,999 employeesClearwater, FLRead More
Chetu, Inc. is a custom software development company headquartered in Plantation, Fla. with several additional locations: Las Vegas, Clearwater, Fla., Brentwood, Tenn., Plano, Texas, Schaumburg, Ill., Madison, Wis., Marietta Ga., Rijswijk, Netherlands, and Noida, India. They have a team of more than 1,000 employees who specialize in custom software development, web development, and mobile application development services. Founded in 2000, they continue to support clients of all sizes in the consumer products and services, financial services, and gaming industries.
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Foot LockerIndustries
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76$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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77$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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78$10,000+10 - 49 employeesBrighton and Hove, EnglandRead More
DabApps is a web and mobile application development agency based in Brighton, England. They were founded in 2010 and have a staff of 21 employees. They specialize in custom software, web, and mobile app development for primarily small business clients in the business services, consumer products, and education industries.
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LODIndustries
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79$10,000+250 - 999 employeesHampshire, EnglandCommunication Crafts is a website development firm. They are located in Lewes, Delaware; Hampshire, England and Ahmedabad, India and have a midsize team. The firm offers Web Development, Mobile App Development, Video Production, IT managed services, and more.Read More
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NutriMixologyIndustries
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80$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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81$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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82$10,000+50 - 249 employeesLondon, EnglandWebsite development company Snotor was established in 2007. They are in Rīga, Latvia; London, England and Khmel'nyts'kyi, Ukraine and have a midsize team. Snotor provides Web Development, Mobile App Development, UX/UI Design, IT staff augmentation, and more.Read More
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Defero Hypefill Wellics IsobioticsIndustries
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83$50,000+2 - 9 employeesGateshead, EnglandRead More
Arch is an application development company. The small Gateshead, England-based firm was founded in 2005. Their services include Mobile App Development, Web Development, Web Design, UX/UI Design, and more.
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Nestle NHS England Dreamworks FindrIndustries
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84$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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85$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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86$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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87$50,000+10 - 49 employeesManchester, EnglandRead More
Founded in 2011, Indiespring is a development firm. Their team of around 20 employees is based in Manchester, United Kingdom. They focus on mobile app development, app marketing, and application testing.
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More Than Car Insurance Big Bus Tours Mega BusIndustries
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88$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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89$25,000+2 - 9 employeesSHEFFIELD, EnglandRead More
Inflecto Systems, a software development company, is located in SHEFFIELD, United Kingdom. The firm provides custom software development, mobile app development, and business consulting and has a small team.The firm was founded in 2006.
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90Undisclosed250 - 999 employeesLondon, EnglandApp development firm Holycode was launched in 2014. Located in Beograd, Serbia; Novi Sad, Serbia; Niš, Serbia and Binningen, Switzerland, their midsize team provides Mobile App Development, Application Management & Support, ERP consulting and SI, Custom Software Development, and more.Read More
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