Privacy Policy

Effective Date: January 18, 2026

This Privacy Policy explains how Hiroshi Oda ("we," "our," or "us") handles user information in the application "Mahjong Instant Score Training" (the "App"). Please read this policy carefully before using the App. By using the App, you acknowledge that you have read and understood this Privacy Policy.

1. Information We Collect

To improve our services, analyze usage, and investigate issues, we may collect the following information. None of the data we collect directly identifies you personally (such as your name, address, or phone number).

• Usage Data: App launches, screen transitions, and feature usage history
• Device Information: Device model, OS version, language/region settings, IP address, and advertising identifiers (IDFA/AAID)
• Diagnostic Data: App crash reports and performance data

2. Information Collection Modules

We use the following third-party analytics module to collect and analyze the information described above. The data provided to us by this module does not include information that can identify you personally.

• Google Analytics for Firebase (Google LLC)

  For details about the information collected and how it is used, please review Google's Privacy Policy and the data collection explanation for Google Analytics for Firebase.

  • Google Privacy Policy
  • Data Collection with Google Analytics for Firebase

3. Purposes of Use

We use the collected information for the following purposes:

• Improving the quality and features of the App
• Performing statistical analysis of usage trends
• Investigating and addressing bugs or service outages
• Informing the development of new features

4. Sharing with Third Parties

We do not disclose or provide the collected information to third parties without your consent, except when required by law or when otherwise permitted by applicable regulations.

5. Changes to This Privacy Policy

We may update this Privacy Policy to reflect changes in laws or service improvements. When we make significant changes, we will notify you within the App or on our website. The latest version of the Privacy Policy is always available on this page.

6. Contact

If you have any questions or inquiries about this Privacy Policy, please contact us at:

hi12801280@gmail.com