Top 30+ App Developers in London

3 SIDED CUBE developed a suite of disaster preparedness apps to help keep communities safe during natural disasters. Using location-targeting and emergency alerts to develop an app across iOS and Android that help people prepare for, respond to and recover from all kinds of natural disasters. The suite of apps has garnered over 10 million global downloads and delivered more than 500 million emergency alerts in a year. The team has been praised for their agility and knowledge while the suite of apps has been recognized for their reach and impact during times of crisis.

“They’re very knowledgeable and often suggest additional functionality or features that you wouldn’t have thought of otherwise. They’re one step ahead of the game.” – Digital Manager, Civic Organization.

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

Apptunix developed an app for iOS and Android to connect entertainment companies with stunt professionals. The client appreciated the staff’s candid personality and creativity, as well as the app’s intuitive design and practicality.

“I think they were pretty spot-on. We’re in two different time zones, so sometimes, it’s just a matter of me sending details and breakdowns of my notes, and they get back to me immediately with their notes on my notes to make sure that they understood everything correctly.” – Founder, Stunt Performer Database

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 

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

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

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

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

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 

Flat Rock Technology created an e-commerce website for a travel bicycle retailer. They continue to maintain the website with various updates. The client prides the team on their professionalism. 

"There is a high degree of professionalism in the team, and they always go the extra mile to complete a task. By opening up new channels, we have increased our sales revenue opportunities exponentially." – Head of Digital Technology, Travel Bicycle Retailer

Fueled designed a bidding-style app for a company that deals with nightlife reservations. They built the app from scratch, taking into consideration what the company wanted, as well as giving advice. The app had a lot of functions, such as a list of venues, submission options, and tools that allowed notifications to be sent from venues.

“They’re incredibly efficient in the work that they do and know what they're doing in design, coding, and executing their ideas. They have a great understanding of what's current and get things done very quickly compared to others.” – Founder, Mobile App

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

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

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

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

Lexington Creative worked with a medical center to design and develop a mobile app, aiming to retain youth and teen patients. The team added games, booking options, diagnosis help, and a health tracking feature. The client was impressed with the results. 

"They have great attention to detail and commitment to creating a quality product. They also have competitive prices and a responsive, helpful staff." – Physician and CEO, Kids & Teens Healthcare

Magora developed two apps and provided a range of services to a conference organizer, including web and graphic design, full-stack development, and database maintenance and development. The client appreciated Magora's expertise, timeliness, and overall efficiency in project communications and completion.

“I would say they are the best outsourced firm we’ve ever worked with. Their project management skills are great – very transparent and very responsive to communication about fixes being urgent.” – Founder, IT Conference Organizer

Mobiloitte developed a mobile app for a social merchandising service. Using iOS and Android, they designed and developed the app based on the client’s rough architectural document. They designed UI and built the back-end of a database using PHP. The client was impressed by the high-quality work and professionalism of Mobiloitte.

“They met deadlines and requirements for each stage of work and kept us updated throughout the project.” – CEO, Social Merchandising 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

An education tech startup teamed up with Net Solutions to create a mobile version of a pre-existing web-based platform. The client was impressed with Net Solutions' ability to work with the existing website and to redevelop entire parts as needed.

“They’re eager to deliver good products, which paves the way for business success. From my perspective, the owner runs the company extremely well.” – Founder, Ed Tech Startup

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

nomtek developed a mobile app to encourage the use of the client’s existing software tool, offering their technical expertise and capabilities in app optimization. They impressed the client with their coding, product development, and “tidy” end-to-end project management.

“There is nothing that I can think to improve. Overall, we were pleased by the collaboration. I would give them high marks for every factor.” – CTO at Educational Organization

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

Pagepro developed a WordPress website for a design studio. Within 10 days, Pagepro provided technical scoping, programming, WordPress customization, and project management services for the client, who praised Pagepro’s consistent communication skills.

“The impact of their work has been very positive. We knew how challenging the deadline was, but they delivered on time and within budget.” — Owner, Design Studio

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

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  

From minimum viable product (MVP) to finished product, STRV developed a smart fragrance app for iOS and Android. The product engaged users and immediately stood out on the market, while the team’s speed, efficiency, and comprehensive expertise impressed the client during the entire cooperation.

“It’s been impressive for us to work with STRV because they’ve been able to problem-solve different aspects that had never been touched or done before in this industry. It’s rewarding to work with an incredible team of smart people who can solve problems that don’t exist yet.” – Co-Founder & CMO, Fragrance App
 

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

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

The Distance App Developers worked on mobile app development for a self-guided walking app. They designed and developed native mobile apps for iOS and Android. In addition, the team integrated a GPS tracking system into the app to enhance the user’s experience and provide additional functionality. The client was impressed with the positive feedback the project received.

“The app has received positive feedback and was the subject of an article in GQ magazine. The initial reviews on The App Store have been great.” – Founder, Self-Guided Walking App

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

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

Totally Tech worked with a British business bank to provide them with an updated CRM software, a website, and Salesforce integration.

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

Zudu worked with an interview platform. The team conducted research and developed an iOS and Android app allowing mobile use of a complex video web platform for corporate environments. Rather than seeing the project as a one-time development or opportunity for upselling, Zudu's team had an awareness and appreciation for the ultimate goal of the platform.

"They [Zudu] have a commercial awareness of what we’re trying to achieve. Rather than trying to upsell us, they talked to us in terms of what we needed on a step-by-step basis. This commercial awareness is different than most developers (app developers in particular), in my experience." – Managing Director, Interview Platform