Top 100 Mobile App Developers in London

Digiruu worked with a children's book app developer to develop the app itself. Digiruu handled iOS development of the app and currently provides ongoing maintenance for it. Digiruu was also able to find an illustrator for the app, which helped provide illustrations for the book.

"They help single-person operations and small businesses just starting out and don’t charge high prices, which is what I needed. A lot of the bigger companies I did go to were a lot more expensive because their focus was more on medium to large companies." - Founder, Children's Book App Developer

hedgehog lab created a series of successful apps for a large Norwegian energy company. Designed for both iPhone and iPad, the apps were made to inspire creativity and engagement within key audiences. Workmanship aside, the client also recognized their professionalism and proactive approach.

"We really enjoyed working with the hedgehog lab team. Their company is efficient, helpful, friendly, and delivered perfectly on time to a very high standard." – Web Editor, Norwegian Energy Corporation

Intellectsoft created an e-commerce app with matching backend infrastructure, then integrated it into the client’s blockchain technology. Transforming the given creative demands into a satisfactory product under a strenuous deadline was deemed impressive, as were their communication skills and determination.

“We've given them a challenge, and they've met it, which is why Intellectsoft has become our leading service provider for technology development.” – Program Manager, Holding Company

Waracle developed an intuitive and easy-to-use app to showcase the client’s intellectual capital and real estate information. Faced with a rigid timeline, the firm delivered an innovative and successful product from their deep experience in development.

"Their technical expertise with mobile apps is second to none." – Director, Real Estate Company

Tapptitude developed an app prototype for a food ordering company. They executed the food ordering company’s vision perfectly and were retained to develop the full product. Some app features Tapptitude developed included platform signup, payment systems, and restaurant menu integration.

“The proof that I’ve been happy with Tapptitude is that we’ve continued working long-term, even though I’ve had the option to use in-house developers. I felt that the communication was great and, most importantly, the quality Tapptitude provides is amazing, as is the communication.” – CEO, Food Ordering App

DMI developed a mobile app on Windows for a large hotel group, providing extensive user experience research and design input such as wireframes and mood boards. Their work stands out for mobile, branding, and data management.

“They tend to think about the end product as a more marketable product. They don't just look at achieving the KPIs [key performance indicators] of the product owner here internally, but also looking to provide fantastic feedback in terms of how certain features or functions can be marketed.” – User Experience Lead, Large Hotel Group

Despite the ambitious timeline and unforeseen technical obstacles, Innofied Solution returned a high-quality app for both iOS and Android that accommodated the client’s existing wearable app. On time and within budget, the team received praise for their front- and back-end interface designs, as well as positive demeanor.

"The Innofied team was professional, competent, responsive, and dedicated." – Director, Global Healthcare Company

Chelsea Apps built an SDK for a customer feedback corporation. The SDK was to be inserted in customers' own mobile applications for better testing. It needed to be easy-to-understand for development teams to work with easily. Chelsea Apps made an SDK that was compatible for both Android and iOS.

"We're in the early days, but we've had 3 clients sign up to use the SDK and 2 of those clients are releasing updates to there own apps in the next month, so we're excited to see the user feedback, but the developer feedback so far has been great." - CTO, Customer Feedback Co.

Foonkie Monkey developed a mobile app for a startup based in Colombia. The platform connects users who need temporary storage space with those who can provide it to avoid expensive storage facilities. The Foonkie Monkey team built out the app with extensive functionality, including integrated payment and shipping solutions. The project has exceeded the client's expectations.

"Without them, we wouldn’t even have a project. Their development work has been essential for us to get to this point." — CEO, Storage Startup

Brightec developed the front and backend of an iOS and Android app for a global housewares company. App users responded favorably, while the client appreciated the team’s savvy branding, responsiveness, and high quality deliverables.

“The app works really well and has a clean look and feel to it. Brightec did a great job.” – Digital Manager, Global Housewares Company

Novoda configured a desktop application and built an Android prototype for a system-optimization software company. Their team coded the main functionalities and inserted an in-app purchasing feature. The app gained over 50 million downloads and a 4.4-star rating on the Google Play Store.

"Last December, monthly revenue for CCleaner was about $100,000. I attributed these metrics to the freemium model and Novoda’s collaborative efforts." – Head of Product, System Optimization Company

Sonin built an app and website for a custom afterlife messages service. They developed the app to be very user friendly, with the ability to upload photos and letters, and to merge audio, video, images, and text. The client was happy with the finished app, and said that it was simple and intuitive. 

“Their technical competency was the most impressive thing. Some of the features we wanted in the app were quite complex.” – Operations Director, Custom Afterlife Messages Service
 

Offering both a strategic perspective and development skill set, Mubaloo developed a native iOS and Android app to facilitate exchanges between investment managers and investors. The project was successfully completed on time and on-budget and convinced the client to retain Mubaloo as a digital consultant.

"Mubaloo was refreshing to have for this initiative; their insight, approach, and knowledge was invaluable." – Solutions Director, Investment Firm

GoodCore Software transferred a paper-based database for NHS patients to a searchable online system. The client required an online database of rehabilitation services and providers with a structured user permissions hierarchy. GoodCore took a specification/brief and translated it into a detailed system specification. The solution was developed along agreed milestones and deployed onto servers.

“The system is currently live and saving significant amounts of time and improving services for patients. GoodCore Software demonstrated a clear understanding of our needs from the outset. Excellent user interface design has made the system very appealing to our users." – Managing Director, advisory firm for patients of NHS hospitals

Thoughtbot’s team helped the client develop a custom software solution aimed at enhancing consumer advocacy. With deliverables mostly on the back-end, the client valued the estimable coding skills, rapid completion time, and commitment to quality.

“They provide a consistent level of service that I haven’t seen from agencies or even our in-house team. Their engineering standards, development standards, and the way that they have that consistently through their team is very impressive.” – Head of Product, Consumer Interest Nonprofit

Glance Creative worked with a military post office by creating a mobile app. This app provided customers with military shipping protocol information ranging from prohibited items to overseas shipping costs based on weight and size. The team offered the best combination of cost, quality, and experience.

"Glance Creative designed an app with a clean, intuitive look that provided a wealth of information to our customers." – Technical Director, British Military Agency

Red C London worked with an event advertising startup to create an iOS application. They provided development services to design and build an iOS-based mobile application.

“Red C displayed great communication and development skills throughout the project. They worked at a competitive price and willingly performed corrections when necessary.” – Founder, Event Advertising Startup

iTechArt Group is assisting with the development of a content management software for video advertisements. The team is building the system to accommodate multiple social media platforms like YouTube and Facebook.

“The engagement has been very successful overall thus far. The work we've been able to quickly launch wouldn't have been possible without iTechArt's help. In addition to the quality of their code, they've also integrated extremely well into our team, adapting to our internal processes relatively seamlessly.” – Founder & CTO, Software Consulting Agency

Ampersand & Ampersand worked on mobile app development for a healthcare platform. They developed iOS and Android apps for the healthcare sector, capable of integrating with various APIs. The client was impressed with the positive feedback the project received.

“People like the app so far. Ampersand takes their work very seriously.” – Entrepreneur, Healthcare Platform

Studio Graphene developed an Android-based application for an IoT startup based in Dubai. The client wanted to build a physical kiosk for customer feedback in the retail sector, and needed digital support due to their smaller staff. Studio Graphene started by building a simple application that included form-based pages and interactive feedback gathering, and expanded into developing a custom CMS and marketing support for the product. The interface won 4 product design awards for the client.

"We’ve won four different product design awards for the interface, graphic design, and animations. They integrate well with all of our teams and consistently produce high-quality materials." — Founder, IoT Startup

Empire Elements designed, developed, and optimized sites for a software company. A company homepage and product site were built to convey the brand image and be maintained internally. The client was pleased with the team's work.

"The two areas they have excelled in are cost and responsiveness. Their project management skills are phenomenal. They’re price was very good, and anytime we need help, even on nights or weekends, they are available." – Managing Director, Software Company 

The Sound Pipe Media partners with a software firm to create various major apps. The team has created a variety of apps with them, including apps for a major soccer club and a global car company. Overall, the client was impressed with the work. 

"They [The Sound Pipe Media] gave great advice regarding enhanced features and user acquisition. They understand the app business and how people consume and choose apps. They treated the project like their own and really put in a lot of effort to make it successful." – Manager, Boutique British Software Firm

Nimble AppGenie developed a powerful digital solution for their fitness influencer client. They designed a fully tailored product based on their client’s unique needs and specifications, garnering positive reviews as a result.

"They worked very quickly and completed all elements of the scope on time. I was able to communicate ideas effortlessly, and they were receptive to all of my input." –Project Manager, Influencer Brand

DOIT Software was hired by a consultancy to built an iOS app to accompany an existing Android app. DOIT Software also assisted with a digital business card product the consultancy created.

"Before major releases, a part-time QA person spends a few days testing it before we push it to the App Store which results in a smooth launch and everything working great." - Business Consultant, Consultancy

Sugar Rush Creative redesigned a website for a baby skincare products company. They also produced videos and graphics for the company. The client was pleased with their engaging work.

"The video was creative and broke down the status of our business and what makes us different from other companies. It explained us in a simplistic manner but with a bit of fun as well, to engage people. It was first class." - Director, Baby Skincare Products Company

Theodo UK developed the platform for an online marketplace after the previous developer proved unsatisfactory. The team took wire frames and a prototype provided by the client to build a minimum viable product, using AWS, React, Python, and Django for the framework. The client spoke highly of the engagement.

“They’re extremely knowledgeable and work closely with us to make sure we know what’s going on. Their team is phenomenal and have both dev and interpersonal skills.” — Executive, Digital Office Marketplace

Binary Mango was hired by a watch and accessory company for AR and VR technology solutions. Binary Mango developed an AR app for iOS to showcase their smartwatches' features. The app saw an increase in both engagement and sales for their smartwatch product line.

"They helped us to solve problems. Their team was flexible in proposing different ways to achieve what we were looking for.' - Marketing Director, Watch and Accessory Company

A fitness club hired Softwire for several projects after a successful website redesign. Softwire redesigned the client's booking system based on PHP and MySQL. Softwire then created a corresponding mobile app for booking. They also provide general maintenance and support, advise the client on branding and lead generation, and develop any custom software.

" Their mobile app, connected to the booking system, reduced the number of customers booking through our receptionists from 75% to 5% and allowed customers to easily schedule courses. Their stabilization to our main site helps bring in new members all the time. They cut down a significant amount of labor cost and continue to improve the membership experience." -IT Director, Fitness Club

Door 105 designed and developed an iOS application as well as a website for a beauty platform. They implemented features into the mobile platform that enable users to schedule and pay for services via Stripe or PayPal. The app received positive feedback about its look and feel, making them a go-to service provider.

"Their communication stands out." — Founder & Owner, Beauty Platform

Milo Creative built a mobile app to create coverage for a third party client. The team designed the platform's UX and UI, then developed methods for data importation. The app gained thousands of users in a short period of of time while generating the buzz that the client desired.

“Within the first few days, the app earned over 10,000 users, which was great for such a niche app. It was the perfect tool to get our client’s project in front of journalists to generate awareness.” –Head of Production, Tech Communications Agency
 

Appy Monkey worked with a hospitality company and created a website as well as an app to serve as a resort directory. The app included information such as upcoming events, weather, clubs, restaurants, and more. Overall, the client was pleased with the team's work.

"The workflow was very effective and the team was very easy to contact. They gave us regular feedback and we had weekly update meetings. The project was also on time and within budget." – Owner, Hospitality Company 

appssemble developed an iOS and Android AR mobile app for a neon sign manufacturer. They added functionality that enables users to customize their orders. The team worked quickly, and the app received positive feedback and generated leads.

“Our analytics have shown that once they install the app, 64% of customers request a price quote and are thus converted into leads.” – Owner, Neon Sign Manufacturer

Shout Digital supported further development of software built into a web-based portal for a savings service provider. They executed on API integrations and maintained the platform to ensure optimal performance. The product facilitated notable growth, administering more than $1 billion.

"Their creativity is a real strength." — Managing Director, Savings Service Provider

Ingenious App Studios developed an app for a meal delivery startup. The team was very helpful in teaching how to make changes to the app. They’re very talented and customer-oriented.

“There was a good customer relationship there, and it was very comfortable.” – Founder, Meal Delivery Startup

SourceFuse has helped maintain an e-commerce automation company's platform for the past 10 years. SourceFuse assisted in new integration development, integration maintenance, product improvement, and new features & functionalities. The company has experienced a 32% ARPU increase with the help of SourceFuse.

"The SF team is self sufficient with an organizational structure of managers and leads, taking requirements from the internal team and driving tasks to completion." - Managing Director, E-commerce Automation Company

An online history encyclopedia hired Geeks to build a web app for extracting content from other websites. The client's key challenge was ensuring that the web app could handle a high volume of data. Geeks developed custom software featuring a user-friendly frontend and a backend capable of extracting significant amounts of data. Finally, Geeks created a JavaScript library that the client can sell to other businesses. The client appreciated Geeks' creativity and innovation.

"Our visualization engine can generally handle ten times more data and the average JavaScript library. We’ve had no problems with the stability of their code. The server has always been perfect." - Co-Founder, Online History Encyclopedia

A telecommunications wanted to create a mobile app to improve their customer's experience. Future Platforms developed two mobile apps for both iOS and Android that assist customers attending large-scale events. 

"...I can say that from the results we can confidently say that the apps have made our customers experiences better. We also closely monitor app store ratings, which are typically excellent." — Senior Brand Manager, Telecommunications Company

When a private dating club needed a mobile app to attract and retain club members, they hired Borne Digital to get the job done. Borne Digital designed and developed the app, which allowed dating club members to receive notifications about upcoming events and RSVP. The app improved the client's key metrics – evening the women-to-men user ratio from 80:20 to 60:40 and improving sales.

"I loved the personality of the founder and [the team's] strong design skills, and I was actually happy with the price point. Handing over that money as a very small business, I felt like I'd gotten value for it. Other, bigger agencies I’ve spoken to didn’t understand what it was like to run a small business." – Founder, Private Dating Club

Asterism Infosoft Pvt Ltd built a custom mobile app for a luxury car rental company. They created a demo to start with before building the full app. The solution launched and awaits feedback from users. 

"They are a small team with vast knowledge." – Director, Luxury Car Rental Company

ustwo partnered with a large bank to assist with a geolocation-based project. The team provided UX strategies to use in the development of the prototype. They pleased the client with their productive work ethic and range of skills.

“Their ability to move very quickly was something that set them apart when we were observing how they work. They had a fantastic developer with us early who was great regarding business.” — Executive Manager, Large Bank

DCSL Software redeveloped the recruitment software system of a construction firm. The firm laid out what they wanted and DCSL designed, tested, and delivered on the system. The client was pleased with the project and felt that DCSL's skills made the collaboration extremely easy. 

"We were able to see straightaway how the system would look and work. That’s another reason it went so smoothly." – Manager, Support Department, Construction Firm

Aglowid IT Solutions developed a site and an app for a collaborative directory platform. They developed the entire platform, including a customer-facing mobile app, an admin console, a supplier web portal, and a backend. The client was very satisfied with the platform and said that the app had an average rating of 4.5 stars.

“I was blown away by their communication and commitment to the project.” – CEO, Collaborative Directory Platform
 

20miles developed a mobile app for a ballroom dance coaching company. Their team built versions for iOS and Android, and the platform can be used by both dancers and coaches. The app is of high-quality and received positive feedback.

“With their knowledge, we can easily ask questions and discuss concepts with the team, and they can provide the best service possible to us.” – Founder, Ballroom Dance Coaching Company

Mindtech Apps developed an MVP of a mobile healthcare app for a healthcare company. They added new features to the app, including user authentication, a calendar, notifications, data management, and offline access. Positive feedback from test users exceeded expectations and prompted further development of the app.

“The mobile and backend partners worked together seamlessly. I was impressed by their communication abilities and the level of knowledge in the field of mobile development. The product was not only delivered on time but also implemented high quality.” – CEO, Healthcare Company

AVAMAE worked with a B2B auction platform by providing a technical solution to physical problem. An app was built as a result, and it featured a multi-level, B2B platform to conduct and participate auctions through. The Microsoft-based app allows for simultaneous listing and bidding at the same time across many devices.

"Because of their work, we were able to launch the product and begin onboarding companies. We already have over 150 businesses signed up, and we’re beginning to see traction as well. At this point, we’re crowdfunding to expand our services. The site looks amazing, and their team continues to work very closely with it to ensure that it keeps improving over time. It’s been a great collaboration." - CEO, B2B Auction Platform

One of Innovify’s clients, an on-demand delivery platform, wanted to streamline how merchants and businesses placed orders and how they assigned drivers. Innovify developed an Android app and website and helped with marketing and strategy.

“I have worked with a couple of these companies before, but they haven’t been as process-oriented as Innovify. They have good processes in place and everything was good for me.” – Founder, Logistics Company

Satva Softech provided cross-platform app development for a business services company. Their team implemented a marketplace, payment processor, and in-app messenger tool. The solutions had 12,000 users within 6 months.

“They often go above and beyond to work additional hours, and even weekends to help solve the issues.” – Co-Founder, Business Services Company

Acropolis worked with a creative consultancy on a web development project. They built WordPress websites for several third-party clients, providing frontend and backend development. The client was impressed with their service.

"I've worked with several partners before them, but they are the most reliable and always deliver on what we discuss." – Founder & Creative Director, Creative Consulting Company

GuideSmiths recently worked on app development support for a connected home tech company. They provided made updates to two old-fashioned internal apps to make room for future growth for the client.

“GuideSmiths is very knowledgeable in their field, so we can have high-level conversations with them before making any decisions.” – Business Analysis Manager, Connected Home Tech Company