App Name: Mahjongg Master (마작 마스터)

Developer/Publisher: WiseGame

Google Play Store Listing: Published by WiseGame

Last Updated: 2026-01-31

This Privacy Policy (“Policy”) applies to the mobile application “Mahjongg Master” (also known as “마작 마스터” in Korean, hereinafter “the App”). This App is published on Google Play Store by WiseGame (the “we”, “us”, “our”, or “Company”). This Policy clearly states the app name and the entity (developer/company) named in the app’s Google Play Store listing, as required by Google Play.

This App complies with applicable data protection laws.

Important Notice: This app may serve ads through Google AdMob. Data collection related to advertising is governed by Google’s Privacy Policy.

0. Controller/Publisher Information

  • Company/Developer: WiseGame
  • App Name: Mahjongg Master (마작 마스터)
  • Package Name: com.wisegame
  • Google Play Store Publisher: WiseGame
  • Contact Email: postmaster@wisegame.kr
  • Contact Hours: Weekdays 09:00–18:00 (local holidays excluded)

1. Information We Collect

A. Automatically Generated Information (Stored on Firebase)

Guest User ID (UUID)

  • What: A unique identifier automatically generated when you first play
  • Purpose: Save your game progress and scores
  • Storage: Firebase Firestore (Google Cloud, Seoul region)
  • Note: This ID does not contain personal information

Game Data

  • Game scores and completion times
  • Game statistics (tiles matched, hints used)
  • Game progress and save states

B. Optional User-Provided Information

Google Account (Optional Login)

  • What: Your Google email and profile name
  • Purpose:
  • Link your scores across devices
  • Display your name on leaderboards
  • Migrate guest account data to permanent account
  • How to provide: You choose to sign in with Google
  • Storage: Firebase Authentication

C. Automatically Collected Information (Advertising)

When AdMob is enabled, the following may be collected:

  • Advertising ID
  • Device information (model, OS version)
  • Usage metrics (e.g., ad impressions, clicks)

Controller: Google LLC acts as the controller for advertising data under its own privacy policy.

2. How We Use Information

A. Game Service Delivery

Save Game Progress

  • Store your current game state
  • Remember completed layouts
  • Track personal best scores

Leaderboards

  • Display rankings among players
  • Show your position and scores
  • Compare scores with other players

Account Migration

  • Transfer guest account data to Google account
  • Sync data across multiple devices (when signed in)

B. Advertising (If Enabled)

Google AdMob may display ads based on:

  • Your device information
  • App usage patterns
  • Ad preferences set in your device

Note: We use Google AdMob with senior-friendly placement:

  • Non-intrusive ad locations
  • Clear close buttons
  • No time-pressure or auto-play video ads

3. Data Retention

On-Device Data

  • Saved games: Stored until you uninstall the App
  • Settings: Deleted when App is uninstalled

Firebase Cloud Data

  • Guest accounts: Retained for 90 days after last game play
  • Google accounts: Retained until you request deletion
  • Leaderboard scores: Retained for ranking purposes

Advertising Data

  • Managed per Google’s AdMob data retention policies
  • See Google’s Privacy Policy for details

4. Sharing with Third Parties

A. Google LLC – Firebase (Required)

Services Used:

  • Firebase Authentication (Google Sign-In)
  • Firebase Firestore (Data Storage)

Data Shared:

  • Guest UUID
  • Google account info (when signed in)
  • Game scores and statistics

Purpose:

  • User authentication
  • Cloud data storage
  • Cross-device synchronization

Data Location: Seoul, South Korea (Asia-northeast3)

Transfer Security: Encrypted via HTTPS/TLS

Retention: Per Firebase/Google Cloud data retention policies

B. Google LLC – AdMob (Advertising)

Purpose: Ad serving and measurement

Data Shared:

  • Advertising ID
  • Device information
  • Usage metrics

Retention/Policy: Governed by Google’s Privacy Policy

5. Your Rights

Access Your Data

  • View your scores in the app’s leaderboard section
  • Check your game statistics in the profile screen

Update Your Data

  • Change display name (Google account users)
  • Update game settings anytime

Delete Your Data

Option 1: Uninstall the App

  • Deletes all on-device data immediately
  • Guest account data remains on Firebase for 90 days
  • Google account data requires separate deletion request

Option 2: Request Account Deletion

  • Email: postmaster@wisegame.kr
  • Subject: “Mahjongg Master – Account Deletion Request”
  • Include: Your Google account email or Guest ID
  • We will delete your data within 30 days

Option 3: Opt-out of Personalized Ads

  • Android Settings → Google → Ads → Opt out of Ads Personalization
  • Or use the opt-out option in the app settings

6. Data Security Measures

Technical Safeguards

  • Encryption in transit: All data transmitted via HTTPS/TLS
  • Firebase Security Rules: Restrict unauthorized access
  • Authentication: Guest users can only access their own data
  • Data minimization: We collect only what’s necessary for gameplay

Organizational Safeguards

  • Regular security audits
  • Limited employee access to user data
  • Incident response procedures

7. Children’s Privacy

This App is designed for users aged 4 and above.

For users under 13:

  • We do not knowingly collect personal information from children under 13
  • Guest mode (UUID only) does not collect personal information
  • Google Sign-In requires age verification per Google’s policies
  • Parents can request data deletion at postmaster@wisegame.kr

Parental Controls:

  • Parents can disable in-app purchases (if applicable)
  • Parents can request account deletion
  • Parents can disable ads (future premium version)

8. International Data Transfers

Primary Data Storage: Seoul, South Korea (Firebase Asia-northeast3)

Third-Party Services:

  • Google Firebase: May transfer data per Google Cloud’s global infrastructure
  • Google AdMob: May transfer data for ad serving

All transfers comply with applicable data protection laws and use appropriate safeguards (e.g., Standard Contractual Clauses).

9. Privacy Officer / Contact

For privacy-related inquiries:

  • Company/Developer: WiseGame
  • App Name: Mahjongg Master (마작 마스터)
  • Email: postmaster@wisegame.kr
  • Response Time: Within 7 business days
  • Contact Hours: Weekdays 09:00–18:00 KST (local holidays excluded)

Data Deletion Requests: postmaster@wisegame.kr

10. Changes to this Policy

We may update this Policy due to:

  • Legal or regulatory changes
  • New features or services
  • User feedback

How we notify you:

  • In-app notice (pop-up or banner)
  • Email notification (Google account users)
  • Updated “Last Updated” date at the top of this page

Material changes will be notified at least 30 days in advance.

Your continued use of the App after changes constitute acceptance of the updated Policy.

11. Additional Information

Related Policies

Legal Basis (GDPR/PIPL Compliance)

  • Consent: You agree to this Policy when using the App
  • Legitimate Interest: Game functionality and service improvement
  • Contract: Providing the game service you requested

Summary for Seniors (쉬운 요약)

우리가 수집하는 정보

  • 게임 점수와 진행 상황
  • 기기 고유 번호 (자동 생성)
  • 구글 계정 (선택사항, 로그인 시)

왜 필요한가요?

  • 게임 저장
  • 순위표 표시
  • 여러 기기에서 같은 계정 사용

안전한가요?

  • 모든 데이터는 암호화됨
  • 본인만 자신의 점수 확인 가능
  • 원하면 언제든 삭제 가능

삭제 방법

  • 앱 삭제 또는
  • postmaster@wisegame.kr 이메일 보내기

Last Updated: 2026-01-31
Version: 1.0
Language: English (한국어 번역 제공)

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