Cookies and browser storage
Last updated: 2 September 2026
In short
We do not use advertising or third-party trackers — neither on the home page nor in the game. To run the Game we use only necessary technical browser storage (localStorage), plus our own privacy-friendly audience measurement (no cookies, no sharing with third parties), which you can opt out of.
What exactly we store on the device
| Purpose | What is stored |
|---|---|
| Profiles and the active profile | Profile nicknames, which profile is selected |
| Game progress | Points (XP), rewards, streaks, avatar, leaderboard nickname |
| Settings | Interface language, sound on/off |
All this data is stored only in your browser and is not sent to us. You can delete it at any time — via the delete-profile button in the Game or by clearing the site data in your browser settings.
Technical cookies from providers
Our providers (Vercel hosting, Supabase server) may set strictly technical cookies necessary for the secure operation of the connection. They are not used for advertising or tracking.
Our own audience measurement
To understand how many people use the Game and where they come from, we run our own privacy-friendly analytics. It uses no cookies, stores only a random pseudonymous identifier in your browser (no name or email), and sends anonymised events (e.g. “page opened”, “account created”) and the referral source to our own server. This data is never shared with third parties and is not used for advertising. Legal basis — our legitimate interest (Art. 6(1)(f) GDPR) in measuring our audience.
How to opt out: open the Turn off analytics page and we will stop counting this device.
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