React development for fast, maintainable user interfaces

Smaller React applications such as calculators or individual interactive modules are possible in the Starter package from €2,500. We build complete web apps with backend, user management and integrations in the Professional package from €8,000. Large platforms and long-term collaboration are quoted individually in the Enterprise package.

A single interactive module is often finished in a few weeks; extensive applications we develop in milestones over several months. For migrations, the duration depends heavily on the size and condition of the existing codebase. After an initial analysis you receive realistic planning.

After the free initial consultation we analyze requirements or existing code and create a transparent quote. During development you see every bit of progress in a preview environment and give feedback directly. After go-live we take over further development if you wish.

All three are established solutions, and depending on the project we also use Vue.js. React scores with a very large ecosystem, many available developers and React Native as a bridge to mobile apps. We recommend the technology that best fits your project and your team.

With Next.js, yes: pages are generated server-side or statically, so search engines find complete content. Pure client-side applications without server rendering, on the other hand, are harder for SEO. We choose the rendering strategy based on whether a page should be publicly found or sits behind a login.

Yes. We first review code structure, outdated dependencies, tests and build process and give you an honest assessment. After that we take over maintenance and further development or modernize in a targeted way the areas that cause the most problems.

A React app is a web application whose interface is built with the open-source library React. Typical features are interactive views that update without reloading the page – such as dashboards, multi-step forms or customer portals. It usually runs in the browser; with React Native, mobile apps can also be developed on the same foundation.

React breaks an interface down into components – small, reusable building blocks such as buttons, tables or entire forms. Each component describes how it looks for given data; when the data changes, React updates only the affected parts of the page. That keeps even extensive interfaces clear and responsive.

React is a library for user interfaces. Next.js builds on it and adds, among other things, routing, server-side rendering, statically generated pages and server functions. For public websites and portals that need to load fast and be found, we therefore often use Next.js; for pure applications behind a login, React alone is often enough.

With React Native you build mobile apps for iOS and Android in JavaScript or TypeScript; the interface is assembled from the native controls of each operating system. A shared codebase serves both platforms, and knowledge as well as parts of the logic can be shared with a React web app. That is especially interesting when a web app and a mobile app are to be built in parallel.

Usually yes, because new versions bring improvements for performance and development, and many libraries gradually drop support for older versions. We check in advance which dependencies and components are affected and update step by step with tests. That way your application stays stable and usable during the changeover.