Last updated: November 10, 2026
This English version is a translation provided for convenience. If it differs from the French version, the French version prevails.
Draft — detailed, but not yet reviewed by a lawyer. This text accurately describes how the app works today, but is not a final legal commitment until it has been validated by a professional.
This policy describes how Grand Prix Gurus ("the Service"), a free Formula 1 prediction game with no stakes or cash prizes, processes your personal data when you create an account, make predictions, add friends or receive notifications. By using the Service, you acknowledge that you have read this policy.
The data controller is: Dorian Herbel. For any questions about this policy or your data, write to hello@dherbel.be.
Your player profile, visible to signed-in players, shows your username, avatar, country, bio, stats, streak and favorites. Your username, avatar and scores appear in the standings. Your predictions may be visible to other players on the game's pages. On our Discord server, our bot may publish your username when you submit a prediction, along with your champion pick if it is the season prediction, then your username, predictions and scores when the results are announced. If you share a result, its page and image are public and show your username, prediction and score for that race to anyone with the link.
No data is sold or shared for advertising purposes.
A session cookie strictly necessary for authentication is set when you sign in. Preference cookies keep your language and your device's time zone, so that schedules are shown in your local time. Your choices about the invitations to install the app and turn on notifications stay stored on your device. Audience measurement (Vercel Analytics) and performance measurement (Vercel Speed Insights) set no cookies. No advertising cookies are used.
We use service providers that process data on our behalf:
Some of these providers are established in the United States, where data may be transferred. These transfers rely on the safeguards provided by the GDPR, such as the European Commission's standard contractual clauses or the EU–US Data Privacy Framework.
Your account, predictions, friend connections and uploaded avatar, as well as your notification subscriptions and preferences, are kept for as long as your account exists and deleted as soon as you delete it. Messages already published on our Discord server are not removed automatically: ask us at the contact address. Notification history is deleted after 90 days. Reports are deleted one year after they are sent. Technical session data is tied to the length of your session. Debugging data is kept according to Sentry's retention policy, solely to fix bugs.
You can delete your account at any time from the Settings page ("Delete my account" button). You also have the right to access, rectify, erase, restrict and port your data, and to object to its processing: write to us at hello@dherbel.be. You can also lodge a complaint with the Data Protection Authority (Belgium).
The Service is reserved for people aged at least 13. Below that age, an account requires the consent of a parent or guardian. If you believe a child under 13 is using the Service without that consent, contact us and we will delete the account.
We may update this policy to reflect changes to the Service or the law. The "last updated" date at the top of the page will change accordingly. We encourage you to check it regularly.
See also the terms of use and the community rules.