Top 90 iPhone App Developers in London

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

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

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

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

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

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

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

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

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

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

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

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
 

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

Kin + Carta built a native mobile app for a health care nonprofit in advance of open enrollment, upgrading their old platform. They built the app for iOS and Android with a focus on human-centered design,

"They helped us go beyond the average of health care to meet the expectation of digital." - CIO, Nonprofit Health Insurance Provider

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

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

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

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

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

designs.codes developed a custom software that was designed to improve engagements with outside business partners for their tenancy services client. They built a platform to meet their exact needs, leading to multiple new engagements as a direct result of the software.

 I felt that my developer cared about my project and would always go the extra mile. -Project Manager, Tenancy Services Company

twentysix worked with this insurance company to only present front-end designs for a direct-to-market product but was soon brought back to build the entire website. twentysix designed the website and is now using .NET developers in an efficient and agile manner.

"We were very impressed by the designs their team came up with, the people they brought to the table, and the way they translated ideas into actual designs." – Project Manager, Insurance 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

DIGIS developed a platform for a media company. They created a platform that would allow the client to make changes to all 27 of the sites that they controlled. They performed an architectural migration to Microservices and connected all the sites to the same backend. The client was very happy with the finished product and impressed with the quality to cost ratio of the work.

“They offered very competitive prices and adhered to the schedule we set.” – Senior Contractor Manager, Media 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

Defraglabs developed a custom software product for their AI client to help them manage multiple workloads. They created a customizable and future-proof platform based on their client’s need for a product that would serve evolving needs, which resulted in highly positive feedback.

"They managed the project professionally and respected our timelines. They even worked extra hours to deliver on time." –Project Manager, AI Client

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

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 

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

Tivix worked with an intergovernmental military alliance to rebuild a mission-critical software system. If and when submarines in international waters come into distress, the organization plans and coordinates the rescue effort of such submarines. Tivix was given complex system requirements and asked to come up with an effective design and solution that would replace a decades-old system. The client was incredibly impressed at every stage of the engagement, with Tivix delivering detailed systems and user-experience design, followed by robust development and operationalization of the system internationally. 

“Every single milestone has been met exactly on time. The company has met every requirement, both in terms of time as well as quality.” Maritime Service Owner, Intergovernmental Military Alliance

A learning mobile development company needed Exyte's mobile expertise. The agency was especially qualified to build an entry-level independent development environment (IDE) with a suite of learning tools and importing premade designs. The client was impressed with Exyte's relatively bug-free code and timing of deliverables as well as their management and operations skill.

"We have very good communication, they are always online, and the time that they plan for features is always exact." – CTO, Educational IDE Startup

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

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

Digit Bazar developed branding elements for a clothing line. Along with designing brochures and a logo, the agency's work included a website and an SEO campaign. The client prides Digit Bazar on its responsiveness and excellent communication.

"We're very happy with the website Digit designed and the media attention their work has helped garner. We've been featured in outlets like Entrepreneur Magazine and Inc." - CEO, Clothing Line

Somo created an overarching mobile strategy for a magazine publication group. They worked on several projects, including a new app. They delivered over 100,000 installs during the course of two and a half months. The client appreciated their creativity and small agency feel. 

“A really great thing about Somo is that they are able to draw on a diverse set of previous client experience.” – Head of Digital Marketing, Magazine Publication Group

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

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

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

Webdecorum provided SEO and e-commerce web development to a carpet retailer. The firm did SEO, PPC, and graphic design work for the retailer. Webdecorum continues to provide updates and technical support for the website.

"My website visibility is great, and I’m getting organic traffic. I am very satisfied with their team. Their developer was able to do everything I requested for the website." - Owner, Carpet Retailer 

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

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

Imaginary Cloud worked on custom software development for an enterprise software platform. Using Angular and Node.js and working from designs, their team built the product with a configurable frontend. They continued to provide support and the client was very pleased with the team’s work.

“Imaginary Cloud created the entire architecture for our app and designed it for large user populations. The platform helped us grow significantly, which led us to win millions of pounds worth of contracts. Their team is intrinsic to our success.” – Strategy Director, Enterprise Software Platform

Blueberry Consultants designed and built a platform to order healthcare items across multiple user and supplier systems for a medicinal product startup. The client was impressed with their expertise.

"Their recommendations proved to be vital for improving the overall development process." –Managing Director, Medical Product Start-Up

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

STAKK built a mobile app for a jewelry marketplace. The platform had an in-house team for their web and mobile site, but their customers were requesting a mobile app. Beta testers of the app have given positive feedback on the app.

“...they met most of our deadlines, and if they didn’t there was a very good reason why that was.” - Co-Founder & CTO, Jewelry Marketplace

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
 

Entropy created an app for a media company. They designed and developed apps for Android and iOS that allowed users to stream and download content produced by the client. The client was impressed with the results of their work. 

“Because they had so much expertise in developing mobile apps, they were able to offer incredibly helpful advice on how to build the product.” – Managing Editor, Media Company
 

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
 

Hyper Apps was tasked with creating a prototype design for an online marketplace's new application. Hyper Apps developed both a design prototype and a pitch deck while incorporating fresh color schemes, visuals, and page layouts. 

"The program managers and other entrepreneurs were very impressed with the end result. We recently pitched the prototype to another individual in San Francisco who was also very impressed." - CEO, Online Marketplace