Effective Date: February 21, 2026

We highly value your privacy and data security. This Privacy Policy is designed to transparently explain how the mobile game "Bai Mahjong" (hereinafter referred to as "this Game") handles relevant information. This Game is published by independent developer Ge Hong and primarily operates on the iOS/iPadOS platforms.

1. Information Collection and Use

Our core philosophy is to provide a pure gaming experience:

• No Collection of PII: We do not actively collect, store, or upload any Personally Identifiable Information (PII), such as your name, email address, phone number, or geographic location.
• Local Data Storage: Your game progress and local settings are stored exclusively on your device.

2. Third-Party Services and Data Processing

To provide leaderboard features and maintain operations, this Game integrates the following third-party SDKs:

• Apple Game Center: Used to provide global leaderboards and achievement systems. Related data (such as scores and nicknames) is managed directly by Apple in accordance with its privacy policy. We do not have access to your Apple ID password or private personal information.
• Google AdMob (Advertising Service):
  • Data Collection: AdMob may collect anonymous technical information, including device identifiers (such as IDFA, only with your authorization), IP addresses, and ad interaction data.
  • Purpose: Used solely for displaying advertisements, frequency capping, fraud prevention, and anonymous attribution statistics.
  • User Control: We support iOS "App Tracking Transparency" (ATT). If you decline authorization, AdMob will not access your IDFA for cross-app tracking.

3. Device Permissions

This Game requests only the following necessary permissions:

• Network Access: Used to load advertisement content and synchronize Game Center leaderboard scores.
• App Tracking Transparency (ATT): Used to request your permission for ad tracking to display more relevant advertisements.

4. Data Security and Retention

• Since we do not maintain cloud servers, we do not collect or store any of your personal data on our servers, eliminating the risk of user data leaks from our end.
• Data Deletion: Game records are physically deleted upon the uninstallation of the App. For data retention policies of third-party services, please refer to the official privacy agreements of Apple and Google.

5. Protection of Minors

This Game is a casual game suitable for all ages:

• We do not include In-App Purchases (IAP) or social chat features.