100% Free-to-Play • Skill & Family Friendly • Zero Gambling

Privacy Policy — Chess by Walletmix & Ludo by Walletmix

Effective Date: October 15, 2026  |  Publisher: Walletmix Limited (walletmix.com)

This Privacy Policy applies to the Chess by Walletmix (com.walletmix.chess) and Ludo by Walletmix (com.walletmix.ludo) mobile applications for Android and iOS, as well as the web versions hosted at game.walletmix.com/chess and game.walletmix.com/ludo.

1. Summary of Data Practices

• No Mandatory Account Registration: You can play offline against AI or local pass-and-play without creating an account or providing your name, email address, phone number, or contact details.
• No Real-Money Gambling or Financial Data: Both games are 100% free-to-play board games with no wagering, no betting, no in-app purchases, and no cash prizes.
• No Third-Party Advertising or Tracking SDKs: Neither app includes third-party ad networks, behavioral analytics trackers, or cross-app tracking identifiers (no IDFA or Google Advertising ID collection).

2. Exact Data Stored & Processed

Data Category	Exact Data Element	Where Stored	Purpose
Local Device Preferences & Saved Games	wmx_preferences (language en/bn, sound, music, haptics, board theme), wmx_chess_saved_games (PGN/FEN), wmx_ludo_recent_matches	On-device storage (localStorage) only	Preserving user settings and offline saved games on your device
Anonymous Guest Profile	wmx_player_profile: randomly generated UUID (playerId), optional display nickname (up to 24 characters), emoji avatar, and local skill rating	On-device storage; transmitted to game.walletmix.com only when joining an online multiplayer match	Synchronizing player turns and display names inside online multiplayer rooms
Online Multiplayer Match State	Room code (6-character alphanumeric), game moves (SAN/FEN or Ludo token positions), match winner, and player UUID/nickname	Encrypted in transit (TLS 1.3 / WSS); active rooms cached in Redis (2-hour TTL) and match records stored in Walletmix PostgreSQL database	Server-authoritative move validation, reconnection recovery, and anti-cheat protection
Network & Security Logs	Client IP address and standard HTTP/WebSocket request metadata	Transient in-memory rate limiter & server access logs on game.walletmix.com	Abuse prevention, DDoS/flood rate-limiting, and multiplayer server reliability

3. Device Permissions

• Internet (android.permission.INTERNET): Used only when you choose to play Online Multiplayer (Private Room or Quick Matchmaking). Offline AI and Local Pass-and-Play work completely without internet access.
• Vibration / Haptics (android.permission.VIBRATE): Used to provide optional tactile feedback for piece moves, captures, and dice rolls. Can be toggled off anytime in the top navigation bar.
• No Sensitive Permissions: The apps never request Camera, Microphone, Contacts, Location, Photo Library, Bluetooth, or SMS permissions.

4. Data Sharing & Encryption

We do not sell, rent, or share your data with third-party advertisers or data brokers. All network communication between the apps and https://game.walletmix.com is encrypted using HTTPS / WSS (TLS 1.2 / TLS 1.3).

5. Data Retention & Deletion Rights

You may clear your on-device profile, nickname, and saved games at any time by clearing application storage or resetting your profile inside the app. To request deletion of online multiplayer match records associated with your anonymous Player ID or Room Code, please visit our Data Deletion Instructions page or email support@walletmix.com.

6. Children's & Family Privacy

Chess by Walletmix and Ludo by Walletmix are traditional family-friendly board games suitable for all ages (4+ / Everyone). We do not knowingly collect personal information from children or any other users.

7. Contact Us

Walletmix Limited, Dhaka, Bangladesh
Email: support@walletmix.com  |  Website: https://walletmix.com