Privacy Policy — SLRating

1. Types of Data Collected

• Device Information: Device type, operating system, Device ID
• Usage Data: Game ratings, feature usage, behavior patterns
• Non-Personally Identifiable Information (non-PII): Used for aggregated behavioral analysis
• Registration Data (if voluntarily provided): Email, nickname, or token to access additional features

2. Registration (Optional)

• Users may register to unlock additional features such as access to special statistics or personal data recording
• Registration is optional, and users can use the app normally without registering
• Registration data is securely stored and not used for commercial purposes

3. Purpose of Data Collection

• For academic research and app development
• To improve user experience and system performance
• No sale or sharing of data with third parties

4. No Advertising or Marketing

• The app contains no advertisements
• User data is not used for marketing purposes

5. Use of External Services

• May use Firebase Analytics or other anonymous analytics services to study overall usage behavior
• No collection of personally identifiable information through these services

6. User Rights

• Users can request deletion of their registration data at any time
• Non-registered users have full access to basic app features
• Collected data will not be used to personally identify users unless they voluntarily provide such information

7. Data Security

• User data is securely stored
• Access is limited to the development team only
• No data is shared with commercial third parties

8. Contact