Web Application Development Agency London

READY TO LAUNCH YOUR WEB APP IDEA?

We have over 24 years of web application wisdom, ensuring we rapidly design and develop you a powerful, engaging and intuitive custom web application that meets your exact requirements.

AWARDS 60+
YEARS 25

Got a project in mind? Connect with us today.

Contra delivered a really creative and practical solution that hit our brief, budget and tight deadline. With great feedback from visitors and over 450,000 video views, we were really happy with the results.

Rob Rutter, The Royal Society
Rob Rutter Head of Digital Marketing & Engagement, The Royal Society

Trusted by leading organisations

Childnet Digital Leaders logo
Square Enix logo
Ontrak Recruitment & Training logo
The Royal Society logo
Childnet Digital Leaders logo
Square Enix logo
Ontrak Recruitment & Training logo
The Royal Society logo
Childnet Digital Leaders logo
Square Enix logo
Ontrak Recruitment & Training logo
The Royal Society logo
Childnet Digital Leaders logo
Square Enix logo
Ontrak Recruitment & Training logo
The Royal Society logo
Childnet Digital Leaders logo
Square Enix logo
Ontrak Recruitment & Training logo
The Royal Society logo
Childnet Digital Leaders logo
Square Enix logo
Ontrak Recruitment & Training logo
The Royal Society logo
Childnet Digital Leaders logo
Square Enix logo
Ontrak Recruitment & Training logo
The Royal Society logo
Childnet Digital Leaders logo
Square Enix logo
Ontrak Recruitment & Training logo
The Royal Society logo

Web application development services.

Connect with us.

Custom web app development.

Ensure your web app is built for your users with bespoke web app development. Our approach blends user-centred design with technical excellence to craft award-winning web applications. Our team of experts code in multiple languages and frameworks, ensuring rapid, seamless loading of your sites.

Web app prototypes.

Once we've completed the discovery and research stage together, we employ cutting-edge design software to produce a clickable prototype of your web app. We follow this with rigorous testing, involving your end-users, to detect and rectify any potential issues before our development team begins coding.
 

Web app game development.

From chocolatey challenges for Cadbury’s, to epic viral quizzes for the launch of Final Fantasy, right up to crucial crowdfunding platforms for Square Enix, it’s a no contest when it comes to Contra’s web app games development. 

Law firm web app development.

We speak to law firms just like yours on a daily basis and understand their unique challenges. We develop a range of secure web apps for the legal sector, including secure client portals, debt recovery payment portals, and management systems. We’ve also integrated with CRMs and other systems. 

Education sector web app development.

As an experienced web app development agency in the education sector, our portfolio includes private social networks for parents, virtual learning environments, mobile apps, and health & wellbeing support platforms for students. We're dedicated to transforming education through innovative solutions.

Consultancy firm web app development.

Working with ‘Big 4’ consultancies, we’ve supported their marketing and HR teams through bespoke event management systems, bespoke webcast and video on-demand apps, and custom management tools. 

Charity web app development.

Donor platforms, volunteer management systems and impact reporting dashboards – we love helping charities maximise engagement and increase donations.

Science & Research web app development.

From immersive virtual environments for flagship science events, to data repositories for  storing and sharing research data and findings, we’ve helped some of the most established Science & Research organisations increase engagement. 

Cutting-edge technologies.

Our dynamic team continually embraces the latest technologies to stay ahead. Our devs utilise various languages and frameworks such as Node, PHP, .Net, JavaScript, Typescript, React, Vue, Lambda, Azure Functions, SQL Server, MySql, MongoDB, CosmoDB, DynamoDB, Firebase and more to craft high-performing web apps.

Ben Edge Contra Agency

Ben

Founder and Creative Director

Got a project in mind?

Reach out to our web app development agency experts. We bring your vision to life. Request a callback now.

Request A Callback

How we deliver web app development.

Connect with us.

Step 1.

30-minute connect call.

We start by getting to know you, your company and your web app requirements on a free 30-minute connect call.

Step 2.

Get your web app proposal.

If we feel there’s scope for us to work together, we’ll send across your web application proposal, outlining the budget, addressing any key questions, and breaking the process down into key stages.

Step 3.

Discovery workshops.

The project begins with a structured session to define app objectives, streamline functionality, and address potential issues. Following this, we'll identify user types and create personas, understanding their goals and usage scenarios. With user personas in hand, we'll develop 'user stories' for each feature, addressing technological approaches and challenges.

Step 4.

Design and prototype.

In the design phase, we prioritise UX design, ensuring a smooth interface built around your users’ needs. We'll provide wireframes, designs, and a style guide for developers. We also ensure branding aligns with your main brand. We then create a fully clickable and testable prototype.

Step 5.

Build sprints.

We utilise Agile development, as used by tech leaders like Google and Microsoft. Agile involves two-week 'sprints,' prioritising user-centric 'stories' for quick progress and feedback. This approach enables rapid adaptation to changing project needs

Step 6.

Quality assurance.

Our application code adheres to best practices, emphasising reliability and reusability. We prioritise robustness through systematic processes, including source control, Test Driven Development (TDD), Continuous Integration (CI), and Continuous Deployment. This ensures a rapid, automated workflow with comprehensive testing. Our software meets the rigours of some of the most demanding compliance teams in the world.

We're recognised by...

CSSDA Best UX Design award logo
Digital Impact Awards logo
Google Partner logo
HubSpot Gold Partner logo
Vega award logo
CSSDA Best UX Design award logo
Digital Impact Awards logo
Google Partner logo
HubSpot Gold Partner logo
Vega award logo
CSSDA Best UX Design award logo
Digital Impact Awards logo
Google Partner logo
HubSpot Gold Partner logo
Vega award logo
CSSDA Best UX Design award logo
Digital Impact Awards logo
Google Partner logo
HubSpot Gold Partner logo
Vega award logo

Frequently asked questions

What is your project management process?
How will we communicate during the project, and how often will updates be provided?
How do you approach the design and user experience (UX) aspects of web app development?
What is your process for testing and quality assurance?
How do you handle bug fixes and post-launch support?
DRAG