Privacy Policy

Last updated: December 30, 2025

1. Information We Collect

Account Information

When you create an account, we collect:

  • Email address (for authentication)
  • Display name (chosen by you)
  • Authentication provider information (if using Google login)

Game Data

We automatically collect:

  • Game session data
  • Achievement progress
  • Daily quiz participation

Guest Users

If you play without an account, we store minimal session data in your browser's local storage to track game data. Some data is sent to our servers in an anonymized form.

2. How We Use Your Information

We use collected information to:

  • Provide and maintain the game service
  • Enable multiplayer functionality
  • Prevent abuse and maintain service integrity
  • Improve the game experience

3. Data Storage and Security

Your data is stored securely using a trusted database provider. We implement appropriate security measures to protect your information from unauthorized access.

4. Data Sharing

We do not sell your personal information. We may share data with:

  • Service providers (hosting, authentication)
  • Other players (not including personal information, in multiplayer lobbies)

5. Cookies and Local Storage

We use:

  • Authentication cookies for login sessions
  • Local storage for game data

6. Your Rights

You have the right to:

  • Access your personal data
  • Request deletion of your account and data
  • Update your display name

7. Children's Privacy

This service is not intended for children under 13. We do not knowingly collect information from children under 13.

8. Changes to This Policy

We may update this Privacy Policy periodically. We will notify users of significant changes by updating the "Last updated" date.

9. Contact Us

For privacy-related questions or to exercise your rights, please contact us at holomusicquiz@gmail.com.