Top 100 Cross Platform App Developers in the United Kingdom
March 2023Looking 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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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
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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."
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2
- $50,000+
- 10 - 49 employees
- London, United Kingdom
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.
Clients
- Eurotunnel
- Virgin Trains East Coast/LNER
- Adidas
- EDF Energy
Industries
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The Distance App Developers is redesigning the UI/UX of an app for a public transit ticket-selling platform. The deliverables will be Adobe XD files containing the designs for the client to implement.
“Their knowledge, skill set, professionalism, and experience in UI/UX design are impressive.”
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3
- $25,000+
- 50 - 249 employees
- Manchester, United Kingdom
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.
Clients
- NHS
- Channel 4
- Close Brothers
- Hinch Property Management
Industries
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Digiryte has helped a software company design a mobile application for iOS and Android. Now that they’ve delivered the design, they plan to move on to the development phase.
“The Digiryte team has essentially read my mind and brought my vision to life.”
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4
- $50,000+
- 50 - 249 employees
- Bournemouth, 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
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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."
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5
- $100,000+
- 50 - 249 employees
- Salford, 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
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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.”
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6
- $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
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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.”
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7
- $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
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A math education organization hired Stakk to build their mobile app using React Native. They used an existing design, coded the app from scratch, connected it to AWS, and integrated handwriting recognition.
“They were responsive and really delightful to deal with.”
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8
- $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
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Old.St Labs redeveloped the frontend of a nonprofit organization's web-based project. They worked on a series of lo-fi and hi-fi designs that were based on the client's feedback.
"The development work was fantastic."
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9
- $50,000+
- 50 - 249 employees
- Belfast, United Kingdom
Instil Software is a software engineering firm based in Belfast, Northern Ireland. Founded in 2005, Instil has about 30 employees that work across a variety of industries. They offer custom software development, mobile app development, cloud consulting and software integration, IoT, and web development.
Industries
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Instil Software was hired by a tech company to support their internal development capabilities. They were tasked with developing sets of features across multiple developer tooling products.
"We were impressed with how well they integrated into the internal team's ways of working."
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10
- $25,000+
- 10 - 49 employees
- Bristol, United Kingdom
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.
Clients
- Ownable
- Kura
- Are.na
- nOCD
Industries
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A consumer internet company hired Morrow to migrate their stack to Supabase and Expo, refactor the core components of their app, set up best practices for their CI/CD, and implement a redesign of their product.
"After launching the new version of our product, our users were very happy with the new experience."
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11
- $10,000+
- 50 - 249 employees
- York, United Kingdom
Netsells is an app development agency based in York, UK. The agency was founded in 2009 and now employs a team of about 30. Netsells specializes in mobile app development, but also provides web development and UX/UI design services. Most of Netsell's clients are small to midmarket businesses.
Clients
- Hiscox
- Uber
- Trainline
- Warburtons
Industries
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Netsells Group did back- and frontend development in Flutter for an educational technology firm’s mobile app and its web version. Their team led QC testing and launched the app before beginning app maintenance.
“I know that by the time I receive the final deliverable, it’s been thoroughly tested and checked.”
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12
- $10,000+
- 10 - 49 employees
- Dundee, United Kingdom
Zudu is a digital agency founded in 2014. Based in Dundee, U.K., they have two other offices in Edinburgh, U.K. and London. The team of 9 specializes in web development and mobile app development. The firm usually services midmarket and enterprise clientele.
Clients
- NHS
- Scottish Government
- SSSC
- Trading Standards
Industries
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Zudu provides web and mobile app design and development services for a volunteer engagement startup. They’ve redesigned the web-based application and built the mobile app focusing on UX.
“Zudu understands who the user is and why they’d be motivated to use our app.”
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13
- $25,000+
- 2 - 9 employees
- Plymouth, United Kingdom
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.
Industries
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Elixel designed interactive wireframes for a palletized goods distributor. These wireframes served as a UI/UX design prototype for the development of an Android and iOS mobile app for signature collection.
“Elixel showed an impressive keenness to understand our business to ensure that what they were doing fit our purpose.”
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14
- $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
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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."
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15
- $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
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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."
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16
- $50,000+
- 10 - 49 employees
- Manchester , United Kingdom
Founded in 2010, Silverchip is located in Manchester, United Kingdom. Their team of 13 employees provides mobile app development and custom software development services for enterprise, midmarket, and small businesses.
Clients
- Suits Me Banking
- England Squash
- LGBT Foundation
- Boundary Outlet
Industries
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Silverchip developed a documentation system to make it quicker and more customizable. They built out the database architecture and added a template builder. They developed with React, JavaScript, and C++.
“They enjoy what they do, and it shows in what they deliver to their clients.”
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17
- $10,000+
- 10 - 49 employees
- Cheadle, United Kingdom
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.
Clients
- Table.co
- EA
- Arm
- Levi Strauss & Co
Industries
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Foresight Mobile implemented improvements on a software company’s Flutter SDK. They enhanced workflows, automated testing, added new functionalities, and more.
"All the work was done in a timely manner."
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18
- $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
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Fortnight helped a cinema marketing company develop the UI/UX designs for their platform. The project included discovery, user journey mapping, UI/UX design, and prototyping, using Figma as the main technology.
“They were a great design partner and understood our requirements very well.”
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19
- $25,000+
- 10 - 49 employees
- Sarratt, 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
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Clock Limited has built a custom CMS membership platform for a media company. They have built the site from scratch, integrating the client's authentication and payment platform.
"They are constantly challenging me to improve, and I love that."
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20
- $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
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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."
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21
- $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
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Binary Mango has worked on various projects with the company, this one being specifically for an AR modeling tool. They worked on front- and backend development, UI/UX, and wireframing.
"Binary Mango is the type of team that delivers on its promises."
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22
- $10,000+
- 10 - 49 employees
- Edinburgh, United Kingdom
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.
Clients
- NHS
- Edinburgh University
- AWDis
- Raven Controls
Industries
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GearedApp built a website that details the objectives and activities of a biotechnology company. The team worked with a branding and design agency on the site. They used provided wireframes for the project.
"I was impressed with GearedApp’s attentiveness and responsiveness."
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23
- $25,000+
- 2 - 9 employees
- Gateshead, United Kingdom
ARCH is a digital solutions firm specializing in the design, development, and hosting of websites, mobile apps, and business systems. They also have extensive experience in e-commerce, intranet, e-learning, CMS and CRM systems. Founded in 2005 and headquartered in London, with an office in Gateshead, U.K., their team consists fo fewer than 10 employees.
Clients
- Nestle
- So Vegan
- NHS Engalnd
- SKIN
Industries
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ARCH developed a mobile app for an independent charity, mainly focusing on the app's UX. They initially had a discovery meeting to identify the client's goals and agreed on the project's scope and technology.
"The initial response has been great."
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24
- $25,000+
- 2 - 9 employees
- SHEFFIELD, United Kingdom
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.
Industries
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Inflecto Systems has provided custom software development services for a care agency. They’ve built two platforms from scratch to create individual invoices for clients and are currently working on maintenance.
"I honestly can’t say enough good things about them. They’re brilliant."
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25
- $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
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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."
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26
- $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
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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."
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27
- $50,000+
- 10 - 49 employees
- Manchester, United Kingdom
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.
Clients
- More Than Car Insurance
- Royal Sun Alliance
- Nokia
- Alstom
Industries
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To prevent service interruptions, Indiespring maintained code for outdated iOS and Android apps. Simultaneously, they used Xamarin to build a new app that grants users access to various tourist attractions.
“I continued to work with them because they’re hands-on and very flexible.”
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28
- $25,000+
- 10 - 49 employees
- Manchester, United Kingdom
Based in Manchester, UK, Corporation Pop has been around for over a decade and is now an established part of the mobile and web development industry. The small team delivers powerful results to clients across several industries.
Clients
- NHS
- The Cream Group
- Live Nation
- BBC
Industries
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Corporation Pop developed a website for an outdoor event specialist's nationwide event series with specific pages for each event. After scoping the project, they collaborated with the client's branding vendor.
"Corporation Pop is very creative and experienced, filling us with confidence in their work."
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29
- $25,000+
- 10 - 49 employees
- London, United Kingdom
Bit Zesty is a custom software development firm. They provide custom software development, ux/ui design, web development, application management & support, and more and were launched in 2009. Their small team is London, United Kingdom-based.
Clients
- Oxford Medical Simulation
- Trussell Trust (UK Foodbanks)
- Queen's Awards for Enterprise
- HMRC
Industries
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Bit Zesty is developing a healthcare recruitment agency’s software solution. They’ve conducted discovery sessions before building the tool using Ruby on Rails. They’re currently maintaining the app.
"They understand the pulse of the customer and do not hesitate to make recommendations."
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30
- $25,000+
- 10 - 49 employees
- London, United Kingdom
Red C London is a mobile app development agency, founded in 1997. Based in London, their team of 11 specializes in mobile app development, web design, and UX/UI design. They work primarily with enterprises and midmarket businesses, focusing on financial services, government, and nonprofits.
Clients
- Sony
- Save The Children
- NHS
- Thames Water
Industries
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Red C London built an app as an international currency and banking service for a FinTech company. They developed the tool natively for iOS and Android devices. The project is ongoing.
"...we have found their quality of delivery to be excellent and most impressive."
Most Reviewed Cross Platform App Developers in United Kingdom
Check out a Cross Platform App Developers in United Kingdom with the most new reviews in the past 12 months.
Cross Platform App Developers
United Kingdom
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- 12 8 new reviews
- 13 8 new reviews
- 14 8 new reviews
- 15 8 new reviews
