PRIVACY POLICY

LAST UPDATED: APRIL 2026

This Privacy Policy describes how Tetris Battle ("we", "us", or "our") collects, uses, and shares information when you use our website at ai-game-tetris.cdtsapp.com (the "Service").

1. INFORMATION WE COLLECT

We collect the following types of information:

Usage Data: Pages visited, screens viewed, buttons clicked, game mode selected, score, difficulty, and session duration — collected automatically via Google Analytics 4.
Device & Browser Data: IP address (anonymized), browser type, operating system, screen size, and language — collected by Google Analytics.
Player Name: The nickname you enter is stored locally in your browser (localStorage) and submitted to our leaderboard database (Supabase) only when you complete a game.
Cookies: Google AdSense and Google Analytics use cookies and similar tracking technologies to serve personalized ads and analyze traffic.

2. HOW WE USE YOUR INFORMATION

To display global leaderboard rankings.
To analyze how players interact with the game and improve the experience.
To display relevant advertisements through Google AdSense.

3. THIRD-PARTY SERVICES

We use the following third-party services that may collect data independently:

Google Analytics 4 — website analytics. Google Privacy Policy
Google AdSense — advertising. Google Ads Policy
Supabase — leaderboard database and real-time game rooms. Supabase Privacy Policy

4. COOKIES & OPT-OUT

Google AdSense uses cookies to serve ads based on your prior visits. You can opt out of personalized advertising by visiting Google Ad Settings. You can also install the Google Analytics Opt-out Browser Add-on to prevent Analytics data collection.

5. DATA RETENTION

Leaderboard entries (player name + score) are stored indefinitely unless you request deletion. Analytics data is retained for 14 months per Google's default settings.

6. CHILDREN'S PRIVACY

This Service is not directed to children under the age of 13. We do not knowingly collect personal information from children.

7. CHANGES TO THIS POLICY

We may update this Privacy Policy from time to time. The "Last Updated" date at the top of this page reflects the most recent revision.

8. CONTACT

If you have any questions about this Privacy Policy, please contact us at: cdts.change@gmail.com