Top 100 Cross Platform App Developers in London
May 2023Looking 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
-
1
- $25,000+
- 10 - 49 employees
- London, United Kingdom
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.
Clients
- Bank of Kigali
- Kuoni
- SAP
- PayPoint
Industries
Visit SiteNotable Project
CoreBlue supported the development of a volunteering software marketplace for a digital products and services company. They provided a roadmap, created design prototypes in Figma, and built portals in React.
"They took the time to understand the long-term plan for this platform."
- Get Started
Get connected with a company for free
Tell us about your project, and we'll match you with vetted companies that meet your requirements.
-
2
- $25,000+
- 1,000 - 9,999 employees
- London, United Kingdom
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.
Clients
- ClassPass
- ZEFR
- Gain Capital (forex.com)
- Merkle
Industries
Visit SiteNotable Project
Vention provides staff augmentation services to a SaaS solutions provider. The scope includes software and feature development and maintenance across the product line.
"They are all developers capable of delivering their responsibilities."
-
3
- $50,000+
- 50 - 249 employees
- London, United Kingdom
Osedea is a computer software company boasting a team of just over 40 employees that provide custom software and mobile app development, as well as AI services. From their headquarters in Montreal, Canada, they partner with enterprise and mid-market companies in the manufacturing, energy, and telecom sectors.
Industries
Visit SiteNotable Project
Osedea developed a modern manufacturing application for a renewable energy company. They were also tasked with UI/UX design and backend work.
"They accommodated our requests as the project went into the plan."
-
4
- $10,000+
- 50 - 249 employees
- London, United Kingdom
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.
Clients
- FieldBI
- AutoBI
- AgroTop
Industries
Visit SiteNotable Project
Softblues is hired by a marketing agency to develop a custom filterable inventory section on a website and create a blog. They are also tasked with migrating the existing blog content.
"The project management team is very responsive and communicates often."
-
5
- $25,000+
- 50 - 249 employees
- London, United Kingdom
Blink22 is a mobile and web development firm based in Alexandria, Egypt. Founded in 2015, their team of 125 serves clients in the transportation and communal workplace sectors. Services include, iOS, Android, and React Native development.
Clients
- Jumia
- Careem
- Khatabook
- Cassbana
Industries
Visit SiteNotable Project
Blink22 worked on the development of an IT services company's web-based application, building the architecture for the databases and integrating sensors directly to the platform.
"They were very resourceful and always tried to find the right solution within their team."
-
6
- $50,000+
- 50 - 249 employees
- London, United Kingdom
3 SIDED CUBE is an accredited app development and digital product agency headquartered in Bournemouth, England with additional locations in London, Chicago, and Washington, DC. Since their ambitious beginning in 2009, the team of about 38 has collaborated with startups and international organizations, reaching over 87 countries and more than 100 million global downloads. In addition to mobile app development, they also provide UX/UI design services to inspirational organizations.
Clients
- American Red Cross
- UNHCR
- Global Forest Watch
- UNESCO
Industries
Visit SiteNotable Project
A government organization hired 3 SIDED CUBE to provide mobile app design and development. With the help of an R&D process, they're creating a gaming app to help engage young people in combating climate change.
"They're a passionate, enthusiastic, and young team."
-
7
- $50,000+
- 1,000 - 9,999 employees
- London, United Kingdom
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.
Clients
- Samsung
- Johnson & Johnson
- GlobePayroll
- Siemens
Industries
Visit SiteNotable Project
Andersen Inc. provided web development support for a payment infrastructure company. The team supported the client's challenging projects with the goal of delivering high-level results.
"Their expertise and experience have added immense value to our project."
-
8
- $25,000+
- 10 - 49 employees
- London, United Kingdom
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.
Clients
- The British Museum
- Nivoda
- London North Eastern Railway (LNER)
- MyCoach School
Industries
Visit SiteNotable Project
Stakk provided mobile app development for a market research company. The team took over an issue-ridden codebase and reworked it to a point where it was functional. They also created backend documentation.
“They’ll be my first call if I have another app concept in the future.”
-
9
- $10,000+
- 10 - 49 employees
- London, United Kingdom
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.
Clients
- Kopona
- Brain.Health
- CityMunch
- Altus Investment Management Ltd
Industries
Visit SiteNotable Project
Old.St Labs developed style guides for a litigation funder. They provided access to Figma and other tools so that we could easily see wireframes and mock-ups.
"They sped things up a lot, particularly toward the end."
-
10
- $50,000+
- 50 - 249 employees
- London, United Kingdom
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.
Clients
- Tenor
- Glorify
- Wellory
- Ontapp
Industries
Visit SiteNotable Project
Tapptitude developed a mobile application for a technology company. After a series of discovery meetings, they built an app natively on iOS with unit test coverage and used an MVVM pattern.
"The project was really well-executed."
-
11
- $5,000+
- 50 - 249 employees
- London, United Kingdom
Protocloud Technologies PVT. LTD. is an information technology and services provider that was founded in 2011. Their headquarters are in Jaipur, India, where they employ between 10 and 15 staff. They work with a range of midmarket and small businesses, offering a full suite of digital solutions, including e-commerce development, custom software development, websites, mobile apps and cloud integration.
Clients
- Wayfair
- United Rentals
- Bed Bath & beyond
- Expedia
Industries
Visit SiteNotable Project
Protocloud Technologies Pvt. Ltd. provided web development and SEO strategy services for an animal products news provider. The team was also tasked with content development and frontend design.
"Protocloud Technologies Pvt. Ltd. always met or beat their progress points."
-
12
- $10,000+
- 2 - 9 employees
- London, United Kingdom
Binary Mango is a mobile app development platform that's based in London. Since 2016, their team of fewer than 10 have provided mobile app as well as AR/VR development assistance to mid-market and enterprise-level clients in the fields of consumer products and advertising.
Clients
- GetLeslie
- Whering
- Medishout
- Fundspace
Industries
Visit SiteNotable Project
A health and wellness platform hired Binary Mango to provide mobile app development. They replicated the design that the client handed to them to build a meditation music player.
"They’re outstanding on all fronts."
-
13
- $100,000+
- 50 - 249 employees
- London, United Kingdom
Apadmi is a 140+ member mobile tech group specializing in app development, IoT, and consulting for big data, BI, and SI. Founded in 2009 and based in Manchester, UK, their team excels at helping organizations use technology to achieve a competitive advantage.
Clients
- BBC
- Argos
- Lexus
- Range Rover
Industries
Visit SiteNotable Project
Apadmi has developed an iOS and Android mobile app for a pizza restaurant where users can order food. The team provides their design, development, and testing expertise. They still develop and release features.
“They’re fully engaged and supportive of the project.”
-
14
- $50,000+
- 250 - 999 employees
- London, United Kingdom
One Beyond is a bespoke software development and digital transformation company headquartered in London with additional engineering centers in Madrid (Spain), Budapest & Szeged (Hungary) and Bucharest (Romania). Across international locations, they have a team of more than 350 individuals providing custom software, web and mobile application development and large- scale digital transformation to a diverse clientele.They support large established businesses, nonprofits, government organizations, and VC-funded startups
Clients
- Smith & Nephew
- GAIL's Bakery
- Costa Express
- Pearson
Industries
Visit SiteNotable Project
One Beyond (formerly DCSL GuideSmiths) developed a cloud-based web app for a contract company. The digital tool lets users define large construction projects and streamlines the procurement process for contractors.
“Whenever there was a problem, they helped us come up with a solution.”
-
15
- $10,000+
- 50 - 249 employees
- London, United Kingdom
Powercode is a web development agency based in Kyiv, Ukraine founded in 2015. They are operated by a team of 66 who are experts in web, mobile app, and custom software development for clients ranging from startups to enterprises. They have experience working in industries such as financial services, business services, and IT. They are also familiar with working with platforms like Amazon, Linux servers, and Azure, among others.
Industries
Visit SiteNotable Project
Powercode developed websites for a nonprofit organization's customers. They also handled CRM integration into the email system.
"Their open and transparent communication and a keen eye for detail took away all my worries."
-
16
- $25,000+
- 10 - 49 employees
- London, GBR, United Kingdom
Zazz is a Seattle-based mobile app development company founded in 2011. They have an additional office in San Francisco. Their team of approximately 50 employees serves clients of all sizes and industries. In addition to app development, they also specialize in enterprise app modernization and UX/UI design.
Clients
- Inclose
- Ideal Smart
- Sparehandz
Industries
Visit SiteNotable Project
Zazz provided branding, UI/UX design, and web and mobile app development for a placement agency. The team created a visual style guide, designed the UI, built a mobile app and a web app, and tested them.
"Zazz was proactive in ensuring that the developed product met the quality standards and was free of bugs or errors."
-
17
- $5,000+
- 1,000 - 9,999 employees
- London, United Kingdom
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.
Clients
- Ericsson
- Dunkin Donuts
- Shieldpay Ltd
- Kenwood
Industries
Visit SiteNotable Project
Dotsquares has developed a web and mobile app for a health and fitness company. They've also helped the client launch the apps.
"They have all gone above and beyond to understand and create a fantastic mobile and soon-to-be web app."
-
18
- $25,000+
- 50 - 249 employees
- London, United Kingdom
Infinum is a software development company in San Francisco, CA. The 50+ team has equal experience in mobile and web development. They work with clients from a variety of industries, including business and financial services and automotive.
Clients
- Philips
- Nike
- Porsche
- Coca Cola
Industries
Visit SiteNotable Project
Infinum provides temporary development setups for a digital products company. They’ve provided project managers, a product owner, and developers who work with Java, Angular, and native iOS and Android SDKs.
“Their communication is top of the class.”
-
19
- $25,000+
- 2 - 9 employees
- London, United Kingdom
Fortnight is a boutique design and development studio based in Manchester, U.K., with offices in London and New York. The studio, founded in 2014, has a team of more than ten that provides mobile app development, branding, product design, web design, and UX/UI design services to small and larger-sized companies.
Clients
- OnePlus
- Bumble
- Thursday
- Simba Sleep
Industries
Visit SiteNotable Project
A video creation and management company hired Fortnight to design a new brand and develop a new website to help launch their new corporate image.
"We loved working with them and would recommend to anyone looking for brand, design, and website development."
-
20
- $25,000+
- 250 - 999 employees
- Borehamwood, United Kingdom
Binmile Technologies is a leading digital strategy and product engineering company based in India with offices globally and was founded in 2017. They have more than 200 employees that provide custom software, app development, web and e-commerce development, and app testing services with market-leading solutions. They expertly steer clients across the globe as they navigate their digital transformation powered by the latest technologies.
Clients
- Indigo
- Adani
- Nanovest
- Prodigi
Industries
Visit SiteNotable Project
Binmile has been hired by an e-learning company to develop a mobile application for Android. The goal is to give users easier access to the client's services and content and establish a platform for marketing.
"They're very professional."
-
21
- $10,000+
- 10 - 49 employees
- London, United Kingdom
CubeZoo is a web development company. The small team is headquartered in Randburg, South Africa. Their services include web development, mobile app development, and enterprise app modernization.
Clients
- Allegra
- BMW
- Investec
- Vodacom
Industries
Visit SiteNotable Project
CubeZoo helped a healthcare company overhaul an existing mobile application. After a series of project meetings, the team handled the entire process, from code review and adjustments to integrations.
"The team had a variety of options around UX design."
-
22
- $10,000+
- 250 - 999 employees
- London, United Kingdom
Sparx IT Solutions is a technology solutions provider founded in 2007. Based in Noida, India, with an office in New York, the team specializes in mobile app development and web development. The primarily serve small business and mid-market clients in the eCommerce, education, and advertising & marketing industries.
Clients
- Wynora
- Aliment
- JexMovers
- HP
Industries
Visit SiteNotable Project
SparxIT provides ongoing mobile app development support for an e-commerce company. They’re helping the client develop and design a cross-platform app from scratch. The team is using Flutter for development.
"We’ve been happy with their services."
-
23
- $75,000+
- 50 - 249 employees
- London, United Kingdom
With a team of 50+, Fueled specializes in creating mobile apps and websites. The New York-based app development company aims to create easy-to-use and attractive products for customers, whether they are big or small brands.
Clients
- MGM Resorts International
- 9Gag
- Harvard
- Rite Aid
Industries
Visit SiteNotable Project
Fueled was hired by a health and wellness brand to develop an iOS app focused on meal management and purchases. The app had to improve the customer satisfaction and retention rates on weekly subscriptions
"They are super communicative and easy to work with."
-
24
- Undisclosed
- 1,000 - 9,999 employees
- London, United Kingdom
Kin + Carta is a tech-centered management consultancy based in Chicago. Founded in 1964, they also have offices in London, San Francisco, New York, and Singapore. Their team of approximately 3,000 focuses primarily on enterprise clients in the financial services and health care fields. Services include mobile app development, cloud consulting, and more.
Clients
- AstraZeneca
- Expedia
- Santander
- Barclays
Industries
Visit SiteNotable Project
Kin + Carta helped an internet company's client with the UX side of developing a voice ordering assistant. They worked on a lot of integrations with the backend between the restaurant's menu and the assistant.
"Kin + Carta had the hard skills when it came to building an engaging ordering assistant."
-
25
- $75,000+
- 50 - 249 employees
- London, United Kingdom
Waracle is a digital products specialist in the UK with offices in London, Glasgow, Edinburgh, and Dundee. Founded in 2007, the company has more than 150 employees delivering high performance apps for mobile, web, Internet of Things, mixed reality, artificial intelligence, and voice. Waracle operates across a range of industry sectors, from fintech, energy, and digital health, to industrial IoT and oil and gas.
Clients
- Virgin Money
- Scottish Power
- Sainsbury’s Bank
- Royal London
Industries
Visit SiteNotable Project
Waracle helped a game engine and technology company develop and design backend infrastructure for the company's Web3 engagement. The team deployed a lead backend, a senior-level backend, and DevOps developers.
"The team adapted our working approach, culture, and timezone admirably."
-
26
- $25,000+
- 10 - 49 employees
- London, United Kingdom
Clock Limited is a digital design and build company. Founded in 1997, the company is headquartered in Kings Langley, United Kingdom. They have a team of around 35 employees who focus on custom software, web, and mobile app development.
Clients
- International Tennis Federation
- Leicester Tigers
- Northampton Saints
- Wall Street Journal
Industries
Visit SiteNotable Project
Clock Limited designed and developed a website and mobile app for a subscription service company. The goal was to increase membership engagement and growth.
"The process was incredibly smooth. The entire team was very prepared at all times."
-
27
- $1,000+
- 10 - 49 employees
- London, United Kingdom
TH-EY is a development agency in London, England. Founded in 2017, they have about 8 employees that serve clients in a variety of industries. Services include custom software development, web development, and mobile app development.
Clients
- Launchworks
- Own-Kind
- pixable
- First Ascent
Industries
Visit SiteNotable Project
TH-EY developed an app for a native beauty booking platform on iOS and Google Play. Key features included an easy-to-use UX.
"The project was a pleasure to be part of thanks to the ease of communication and understanding from the team."
-
28
- $25,000+
- 10 - 49 employees
- London, United Kingdom
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.
Clients
- Admiral
- Veygo an Admiral company
- BNP Paribus
- MADE.com
Industries
Visit SiteNotable Project
Theodo developed a user-friendly React Native iOS and Android application, which allowed the internal team to move their customers from expensive PPC web ads to the mobile application.
"They worked outside of the scope of their work to help us as needed."
-
29
- $10,000+
- 10 - 49 employees
- Watford, United Kingdom
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.
Clients
- Aspire Customer Communication Services
- Imagine Property Group
- Renteq Highways
- HSM
Industries
Visit SiteNotable Project
AppDrawn Software Development provided custom software development services for a healthcare firm — they led the setup of the client's CRM system. The team also applied various modifications.
"The personal relationship and responsiveness of their senior team set them apart from other vendors."
-
30
- $10,000+
- 50 - 249 employees
- London, United Kingdom
Tech Alchemy was founded in 2016 and has two locations in London. Their team of nearly ten employees provides web development, mobile app development, and UX/UI design services for small businesses.
Clients
- Ocean Bottle
- TOAD
- MyBricks
- Moviecoin
Industries
Visit SiteNotable Project
A B2B entertainment platform was looking to integrate blockchain technology into its system, so they engaged with Tech Alchemy for their custom software development sevices.
"They’re a solid team with excellent synergy, and they’ve merged well into the project."
Get connected with the right company for you
We'll do the work for you – finding and connecting you with service providers that meet your exact requirements.
Schedule ConsultationMost Reviewed Cross Platform App Developers in London
Check out a Cross Platform App Developers in London with the most new reviews in the past 12 months.
Cross Platform App Developers
London
- 11 7 new reviews
- 12 7 new reviews
- 13 7 new reviews
- 14 7 new reviews
- 15 6 new reviews
