LEGAL

Privacy Policy

Last updated: July 9, 2026. This page explains what TETRIO stores about you and how. TETRIO is a static, client-side game with no account system and no server-side database of our own. Your game data stays in your browser; the only information that leaves your device is the anonymous usage statistics collected by Google Analytics, described below.

Information stored locally in your browser

TETRIO uses your browser's localStorage to remember your preferences between visits. None of it ever leaves your device or is sent to any server:

  • Your high score
  • Your language, visual theme, and light/dark mode preference
  • Your background music volume and mute setting
  • Your selected background photo
  • Whether you've seen the first-time settings hint

You can clear all of this at any time by clearing your browser's site data for this page.

Cookies

TETRIO sets no cookies of its own. Google Analytics sets a few of its own cookies (such as _ga) to recognize returning visitors and measure traffic; you can block these in your browser with no effect on gameplay.

Advertising and analytics

TETRIO uses Google Analytics (GA4) to measure traffic — how many people visit and which pages and languages are popular — so the game can be improved. Google Analytics sets its own cookies and processes data such as an approximate, anonymized IP address, your device and browser type, and the pages you view; this data is handled by Google under its own privacy policy. It is not used to show you ads, and TETRIO still displays no advertising. You can opt out with Google's browser add-on at tools.google.com/dlpage/gaoptout, or by blocking analytics cookies in your browser.

Children's privacy

TETRIO is not directed at children under 13, and we do not knowingly collect personal information from anyone. Since the game stores no personal information today, this is largely moot — this section will be revisited if that changes.

Changes to this policy

This page may be updated as the game changes. The date at the top reflects the last update.

Contact

Questions about this policy can be sent to markusno799@gmail.com.