Custom web application development

What’s included

When a website or webshop is no longer enough, we design and build custom web applications tailored exactly to how your business operates. These are solutions built around workflows, data, and logic – not templates or predefined limitations.

Our custom applications are designed to scale, integrate with other systems, and evolve over time. While most of our projects are protected by NDAs, our approach, technologies, and level of depth remain the same across all builds.

We primarily work with PHP (Symfony + API Platform) on the backend and React.js or Next.js on the frontend, allowing us to deliver modern, robust, and maintainable applications.

Discovery and planning based on business processes and goals

Authentication and role-based access control

Application architecture and data modeling

Performance, security, and scalability considerations

Custom UI/UX design

Testing, deployment, and handover

Backend development with Symfony and API Platform

Long-term maintenance and feature development

Frontend development with React.js or Next.js

API design and integrations

Server setup and configuration

Have an application in mind?

Contact us

Case study

Due to confidentiality agreements, we can’t publicly share detailed case studies for many of our custom application projects. However, the applications we build typically fall into similar patterns and solve comparable problems.

Instead of a single named project, the following sections highlight real features and solutions we’ve implemented across multiple client applications. The designs you see below are not a part of any project or client design.

Feature highlights

Interactive, real-time platforms

Some of our custom applications are built around interaction between users rather than internal business processes. These platforms focus on speed, responsiveness, and real-time updates.

  • Real-time communication (chat, notifications, live updates)

  • User matching and grouping based on custom criteria

  • Dynamic group creation and management

  • Event-driven logic that reacts instantly to user actions

These systems are designed to feel fast and engaging, while remaining stable and scalable behind the scenes.

Custom data models and application logic

Instead of forcing ideas into predefined systems, we design application logic around the product itself.

  • Custom data models built for the application’s real use cases

  • Flexible rules and states that evolve with the product

  • Role-based access and permissions for different user types

  • APIs designed specifically for frontend and third-party consumption

This allows the application to grow organically, without technical constraints getting in the way.

Technical implementation

Backend

  • Symfony-based backend with API Platform

  • Well-structured domain logic and data models

  • Secure authentication and authorization layers

  • Custom business rules implemented in PHP

  • Clean APIs consumed by the frontend and external services

Frontend

  • Custom-designed interfaces built with React.js or Next.js

  • Component-based architecture for long-term maintainability

  • State management tailored to application complexity

  • Responsive layouts optimized for real-world usage, not just visuals

Other project activities

Design

  • UI/UX design focused on usability and clarity

  • Design systems adaptable across multiple application modules

  • Interactive prototypes where needed

Learn more

Marketing & Branding

  • Support for digital marketing and branding where applicable

  • Design assets and landing pages for application promotion

  • Integration with analytics and tracking tools

Learn more

Finished project & result

The result is a custom-built web application designed around real operational needs — not compromises.

  • Teams work faster and more efficiently

  • Data is centralized and easier to manage

  • The application can evolve as business requirements change

These projects show how custom web applications can become core business tools, not just supporting software.

Let’s talk

If you’re considering a custom web application – or wondering whether your idea needs one – we’re happy to discuss it. We can help you validate the concept, define the scope, and choose the right technical approach.

Get in touch to:

  • Talk through your idea or internal process

  • Assess whether a custom application makes sense

  • Explore technical and design options

Contact us