Privacy policy

Stilval collects nothing. This page explains what that means in practice.

Last updated: 2026-08-27

What we collect: Nothing. Stilval has no account system, no login, no analytics and no advertising identifier. It does not ask for your name, your email address or any permission beyond running on your device.
What leaves your device: Nothing. Stilval makes no network requests at all. It has no server. Your scores, your daily streak, your unlocked themes, your settings and any game you left half-finished are stored on your phone and nowhere else. Uninstalling the app deletes them.
The daily puzzle: Everyone gets the same daily puzzle, but it is not downloaded. It is calculated from the date on your own device, which is why it works in airplane mode.
Sharing a score: If you tap Share, your phone's own share sheet opens with a line of text. Where that text goes is entirely your choice, and Stilval never sees it.
Children: Stilval is suitable for all ages. Because it collects nothing from anyone, it collects nothing from children either.
Google Play: Google Play collects its own data when you install or update any app, such as your download history. That is Google's processing, not ours, and it is covered by Google's own privacy policy.
Future changes: If a future version ever adds optional rewarded video, that will involve an advertising provider and this page will be updated before it ships. It will remain entirely voluntary.
Contact: Questions about this policy: privacy@stilval.com