Best App Developers in London

3 Sided Cube won App Agency of the Year at the 2018 UK App Awards and Most Innovative App Developer at the UK Agency Awards. Their team of 30+ designers and developers has served clients in over 90 countries across the world.

The American Red Cross has long-struggled to make donating blood an appealing way to make a difference. 3 Sided Cube created a mobile app that transformed blood donation. The app allows donors to track where their blood is being used to save lives.

With enterprise clients like Honda and Denza in addition to multiple startups, Tapptitude has the experience to support their reputation. They’re European-based mobile app and UX designers with a global mindset.

Tenor created one of the most popular GIF apps in the world, with millions of users worldwide. Tapptitude designed their app to be as fun and dynamic as the GIFs it helps create.

With a passion for both strategy and design, Blink22 has provided custom software development work for clients like Careem. Based in Egypt, Blink22 brings a long history of success to each project they complete.

When Involvio was just a new brand looking to make an impact, Blink22 crafted the entirety of their experience in this distinct area. The result was a splashy entrance into the market orchestrated by Blink22 designers and strategists.

Fueled creates valuable and profitable apps for clients of all sizes, receiving notable recognition for their work from Creative Review and Digiday. The design and development agency specializes in projects within the arts, entertainment, and consumer products industries.

Afterlight already had an iOS app but approached Fueled to design an Android version that included all of the same functionalities. The photo-editing app features an accessible interface that allows users to enhance images through various filters, textures, and frames. Since launching, it has garnered over 20,000 users.

If you are looking for a world-leading technical expert and developer, then CoreBlue is the perfect team for you. They believe that technology is used to improve lives and that is exactly what they do. You can trust this company to deliver well-rounded services from start to finish. From planning to maintenance, these guys got you covered.

One of their recent projects is with Propio, an investment startup platform. The CoreBlue team integrated APIs and platforms to help users create and manage their investment opportunities. They utilized React, PHP, Nginx, and AWS EC2 for the solution.
 

SoftBlues is a web and mobile development company with 15 years of experience focused on JavaScript. They have completed over 700 projects in various fields and are proud to have worked with industry leaders and B2B startups that serve thousands of clients and have gained millions of dollars of investment.

They helped AutoBI create several things, including a unified market solution that combines all the necessary tools in one solution and a reliable production solution for equipment maintenance. This solution can be sold and adapted to other companies and organized automatic registration and the flow of new customers to the platform. 

Stakk, a small award-winning software development partner, is headquartered in London, United Kingdom. The Stakk team specializes in designing and developing scalable applications using mobile and web technologies. Their services include UI/UX design, mobile app development, frontend design, and Core development.

Nivoda develops solutions to help businesses increase their sales and margins while removing the operational burden of sourcing diamonds. For example, Nivoda partnered with Stakk when looking for a new mobile app with a user-friendly interface. As a result, the Stakk team was integrated into Nivoda’s existing team of developers and delivered a product efficiently that helped Nivoda scale its operations and reach a broader user base.
 

With clients like Royal Caribbean and Universal Music Group, Infinum certainly has no shortage of big-name projects in its portfolio. But despite their massive enterprise clientele, the New York-based web development agency retains a focus on creative-minded approaches to client pain points.

The Museum of Broken Relationships made international news for its crowdsourced platform of stories and items from relationships that have ended. Infinum designed the online extension of the museum’s mission, with a fully responsive web application that connects sufferers of lost love around the world.

What do Simba and King Gaming have in common? They’ve both turned to Fortnight for product design expertise. This UK-based agency has already made major waves with work for enterprise clients and startups alike.

When BMW launched a platform targeting their unique users, Fortnight analyzed the entirety of their approach to create key features and design a strategy that would bring together all elements of the client’s brand. The result was a huge success, and continues to drive progress for the brand today.

Their clients include major enterprise clients like FindMe FindMe, but Digiruu is a mobile app development agency that hasn’t lost its focus on innovation or creativity. This UK-based firm helps organizations around the world focus their strategy for greater success.

If you want to see how Digiruu helps brands communicate with their audiences in a unique and crowded space, look no further than their work for Uvent. Digiruu helped them define a strategy for their audience to improve their reach.

Vention's stylish and contemporary mobile design is evident in their work for brands like Gain Capital and Stella Service. This custom software development provider is based in New York and features a 3,500+ strong talent pool of designers, developers, and leaders.

ClassPass is a fitness membership organization that found itself in need of a more powerful, streamlined app. Vention worked with ClassPass’ online team to develop a feature-rich web solution for both iOS and Android users.

Magora has developed over 300 native web and mobile applications for clients like Unilever, Cisco, and Toyota. Their development team focuses on creating internal enterprise utilities, consumer-facing services, and startup MVPs for clients across a variety of industries like healthcare, finance, and real estate.

To help pharmaceutical company EGIS understand its data and use it to inform decisions, Magora built a custom app: Pharm Card. Medical representatives use Pharm Card to track information from trips to pharmacies. The app aggregates the data, processes it, and displays it for the executive team.

Their clients include major enterprise clients like GlobePayroll, but Andersen is a IT staff augmentation agency that hasn’t lost its focus on innovation or creativity. This Arizona-based firm helps organizations around the world focus their strategy for greater success.

If you want to see how Andersen helps brands communicate with their audiences in a unique and crowded space, look no further than their work for Samsung. Andersen helped them define a strategy for their audience to improve their reach.

Osedea is a UX company. They were launched in 2011 and offer ux/ui design, custom software development, mobile app development, and Artificial Intelligence.

10Pearls began as a two-person operation and is now a global organization of more than1200 individuals with offices in DC, New York, London, San Jose, Toronto, Dubai, Karachi, Lahore, Islamabad, and Medellin. The agency offers a complete suite of application and software development services.

One example of which is the creation of an online educational experience that drove assessment goals for Discovery | Education and their STEM programs across the country.
 

Sparx IT Solutions blends strategic consulting, opportunities in emerging tech, and regular support for complete customer delight. Their client portfolio is made up mainly of small to mid-sized clients in industries like e-commerce, business, and education.

A recent example of their work was creating event app Techathon. Sparx IT Solutions powered it as an event aggregator app to bring users all tech-related events in their area so one app provided all of the information they needed.

Old.St Labs is a consultancy and development business that provides innovative design and product development for startups and enterprises. The team is driven by a mission to empower innovators through technology.

Allegr is a community building application, which Old.St Labs worked on. The team was responsible for designing and developing the mobile app tailored to the client’s value proposition.
 

Zerocoder is a Roseville, California-based software development firm. They focus on custom software development, web development, mobile app development, web design, and more and were founded in 2023.