1. Introduction
Chess Master ("we", "our", or "the app") is developed by Shareef Studios. This Privacy Policy explains what information we collect, how we use it, and your rights regarding your data. By using Chess Master, you agree to this policy.
2. Information We Collect
Automatically collected (anonymous):
- A random anonymous user ID generated by Firebase Authentication — this contains no personal information and is not linked to your identity.
- Game session data stored in Cloud Firestore (moves, game state, room codes) used only to enable online multiplayer. This data is deleted when the game ends.
- Device type and OS version collected by Google AdMob for ad serving.
We do NOT collect:
- Your name, email address, or any account credentials
- Your location
- Your contacts or phone book
- Photos, camera, or microphone access
- Any data that personally identifies you
3. How We Use Information
- Anonymous Auth ID — used only to securely link two players to the same online game room. Discarded when the game ends.
- Firestore game data — used in real-time to sync chess moves between two online players. Not stored permanently.
- AdMob data — used by Google to display relevant ads. Governed by Google's Privacy Policy.
- Nearby Connections — used for local Bluetooth/Wi-Fi multiplayer. No data leaves your local network. No data is stored.
4. Third-Party Services
Chess Master uses the following third-party services, each with their own privacy policy:
-
Firebase (Google) Authentication + Firestore
firebase.google.com/support/privacy -
Google AdMob Advertising
support.google.com/admob -
Google Play Billing In-app purchases
play.google.com/about/play-terms -
Google Nearby Connections Local multiplayer
developers.google.com/nearby
5. Permissions
The app requests these Android permissions:
- INTERNET — required for online multiplayer and ads.
- BLUETOOTH / BLUETOOTH_ADMIN / BLUETOOTH_SCAN / BLUETOOTH_CONNECT / BLUETOOTH_ADVERTISE — used only for local Bluetooth multiplayer (Play Nearby feature). Never used to track location.
- ACCESS_WIFI_STATE / CHANGE_WIFI_STATE / CHANGE_NETWORK_STATE — used only for local Wi-Fi Direct multiplayer.
- ACCESS_FINE_LOCATION / ACCESS_COARSE_LOCATION — required by Android for Bluetooth discovery. We do not record or transmit your location.
6. Children's Privacy
Chess Master does not knowingly collect personal information from children under 13. The app does not require any account creation or personal data entry. If you believe a child has provided personal data, please contact us and we will take immediate steps to delete it.
7. Data Retention
Online game data (Firestore documents) is automatically deleted when the game session ends. Anonymous authentication tokens expire after 30 days of inactivity and are not linked to any personal identity. We do not retain any user data long-term.
8. Data Security
All communication with Firebase is encrypted via HTTPS/TLS. Firestore security rules restrict access so that only the two players in a game can read or write their game data. No third party can access your game sessions.
9. Your Rights
Since we collect no personal data, there is nothing to access, correct, or delete. If you have concerns, contact us and we will respond within 7 days.
10. Changes to This Policy
We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated date. Continued use of the app after changes constitutes acceptance.
11. Contact Us
If you have any questions about this Privacy Policy, please contact:
Shareef Studios
Email: abdullahshareef7945512@gmail.com
Last updated: April 27, 2026