Chinese Chess Privacy Policy

**App Name**: Chinese Chess: AI Rank Challenge

**Package Name**: com.gamechinesechess.plus

**Updated Date**: March 12, 2026

**Effective Date**: March 12, 2026

Thank you for choosing to use Chinese Chess (hereinafter referred to as "this App"). We fully understand the importance of privacy protection. To effectively safeguard your personal information security and legitimate rights, this Privacy Policy is formulated in accordance with the Personal Information Protection Law of the People's Republic of China, Cybersecurity Law of the People's Republic of China and relevant international standards.

This App **does not require registration or login** to use core functions. During your use, we will strictly comply with this policy to collect, use, store and protect your relevant information. Please read and understand all contents of this policy carefully before use, especially clauses related to personal information processing. Your use of the App shall be deemed as acceptance of this policy.

## 1. Information Collection and Use

### 1.1 Non-Personal Information Collection

To ensure normal operation, optimize service experience and provide advertising services, we will automatically collect the following non-personally identifiable information **without registration or login**, and will not associate it with personal identity:

1. **Device information**: Device model, OS version, device unique identifier (such as Android ID, OAID), screen resolution, network type (Wi‑Fi/mobile data), device language and region settings, etc.

2. **Usage behavior information**: Function usage, song playback history, playlist creation and favorites, page browsing paths, duration, ad clicks, etc.

3. **Log information**: App startup logs, crash logs, service request logs, etc., for troubleshooting and performance optimization.

### 1.2 Personal Information Collection

This App **will not actively collect** personal identity information such as your name, phone number, ID number, or email address.

If you voluntarily provide contact information when contacting support (e.g., via email), we will only use such information to resolve your issue and delete it promptly after completion.

### 1.3 Purpose of Information Use

1. Provide core services: Support music playback, playlist management, offline download and other basic functions.

2. Optimize experience: Improve performance and fluency based on device and usage data.

3. Advertising services: Provide ads through Google AdMob.

4. Security: Analyze logs to fix issues and ensure safe operation.

## 2. Information Processing Related to AdMob

This App integrates Google AdMob for advertising services. AdMob’s data processing follows its own privacy policy and this policy:

1. **Data collector**: AdMob may collect device identifiers, network information, usage behavior and ad interaction data for ad delivery, statistics and personalized recommendation.

2. **Personalized ads**: You can disable personalized ads in Google Ads Settings. You will still see ads, but they will not be personalized based on your behavior.

3. **Data storage and transfer**: AdMob stores and transmits data under its own policy, which may involve cross-border data transfers in compliance with international standards.

## 3. Information Storage and Protection

### 3.1 Storage Method and Period

1. Non-personal information: Stored in local cache and compliant servers, retained for 180 days, then automatically deleted or anonymized.

2. Feedback information: Retained only until issue resolution, maximum 30 days, then deleted immediately.

### 3.2 Security Measures

We use industry-standard security technologies and management measures including data encryption, access control and security audits to prevent information leakage, tampering, loss or abuse.

Please note that no network transmission or storage technology can guarantee 100% security.

## 4. Information Sharing and Disclosure

We **will not share or transfer** your information to any third party except:

1. With your explicit consent;

2. As required by laws, regulations, judicial or administrative authorities;

3. To protect legitimate rights and interests in emergencies;

4. Information processed by AdMob under its privacy policy (as stated in Section 2).

We will not sell your information to any third party.

## 5. User Rights

Although this App does not require registration or login, you may:

1. **View and delete local data**: Clear cache, playback history and playlists in App Settings.

2. **Opt out of personalized ads**: Adjust settings in Google Account > Google Ads Settings.

3. **Contact us**: For questions or complaints, email us; we will respond within 7 working days.

## 6. Minor Protection

This App is suitable for all ages. We pay special attention to minor privacy.

If a minor provides personal information, it should be with guardian consent. Guardians may contact us to delete or handle such information.

## 7. Updates to This Policy

We may revise this policy from time to time due to legal updates or function changes. Revised policies will be notified via in-app popup or page notice and take effect upon publication. Please check periodically.

## 8. Contact Us

If you have any questions, comments or complaints about this Privacy Policy, please contact us