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Beyond websites

Custom web and mobile app development

Home page of racenode.com: “Stop rebuilding the event PDF”, next to the app on a phone showing a race weekend schedule at the Nürburgring.The same page on a phone.
Client workRaceNode, home page on desktop and on a phone. Screenshot of 12 October 2026.

A shared spreadsheet nobody keeps up to date, information lost in group chats, a document rebuilt every time something changes: when an off-the-shelf tool does not fit the way you work, we build yours.

What we build

Web apps for a specific trade or team: planning, logistics, job or case tracking, client areas. They open in a browser, on desktop and on phones, and install on the home screen like an app, full screen.

The RaceNode example

RaceNode is our own software. It runs race weekends for motorsport teams: each team member sees on their phone their role, their flight, their hotel, their meals and the next session. It was designed by William Brillouet, a former GT3 team manager, from the problems he lived through on those weekends.

It is in production, open to teams, with its data hosted in the European Union. Its interface is in English.

See the RaceNode case study · racenode.com

How a project runs

  1. The scope, in writing. The real problem, who uses the tool and on which device, what is included and what is not, and the test that says it is done.
  2. A mock-up you can click. You correct on screen what would have been hard to put into words before seeing it.
  3. Build and launch to production, on accounts in your name.
  4. Then a plan, or the keys. As with a website, the code is yours once the quote is paid.

What we do not do

  • Apps that process health data.
  • Developers hired out by the day: we deliver a result, at the quoted price.

Describe what you need

Frequently asked questions

Web app or mobile app: which do I need?

Usually a web app: it opens in a browser on desktop and on phones, and installs on the home screen like an app, full screen, with its own icon. One build serves every device. Whether the tool needs more than that is settled in the written scope, before anything is built.

How much does it cost to build a custom app?

It is quoted after a written scope: the price depends on what the tool has to do. The quote sets the scope, what is not included, the price and the schedule. We deliver a result at the quoted price, not developer days.

Who can build an app for my business?

We can, if the app is a business tool: planning, logistics, job or case tracking, a client area. We do not build apps that process health data.