Privacy Policy

Last updated: April 2026

FruitRank is a small side project built for fun. This page explains what data is collected, how it is stored, and how it is used.

1. What data is collected

  • Email address: only if you choose to sign in. Your email is immediately hashed using a one-way function. The raw address is never written to the database and cannot be recovered.
  • Session data: when you play a game, a short-lived session is created that tracks your match choices. The match results of a session are publicly accessible to anyone who knows the session id, so treat the result of your games as semi-public. The sessions are anonymised and cannot be linked to the e-mail address of the player.
  • Match outcomes: your choices (which fruit you preferred) contribute to the global rankings. They are not linked to you personally.
  • Contact messages: if you send a message via the contact form, your name, email, and message text are stored so I can reply. These are only visible to the site administrator.

2. What is not collected

  • No tracking cookies, advertising pixels, or analytics scripts.
  • No IP address logging beyond what a standard web server produces.

3. How data is used

Match outcomes are used solely to compute the global fruit rankings using the Glicko-2 algorithm. Session data expires automatically and is not used for any purpose other than managing your current game.

Aggregated and anonymised ranking data (e.g. fruit ratings and match counts) may be shared upon request for research or analytics purposes. No data that could identify an individual will be included in such exports.

4. Data retention

Sessions expire after 24 hours. Hashed email identifiers and aggregated match data are kept as long as the service runs. If you would like your data removed, send a message via the contact page and I will delete it promptly.

5. Cookies

A single session cookie is set when you play. It contains a hashed token used to identify your session and expires with your browser session or after 24 hours, whichever comes first. No third-party cookies are used.

6. Contact

This project is run by Lukas Siegle as a personal hobby project. For any questions or data removal requests, please use the contact page.

This policy may be updated occasionally. As this is a non-commercial project with no legal obligation, it is provided in good faith rather than as a formal legal document.