Privacy Policy

Data security is important to us. This policy explains how your data is collected and used.

Sudoku Logic Lab

Last Updated: December 29, 2025

1. Introduction

This Privacy Policy explains how Sudoku Logic Lab ("App") collects, uses, and protects personal data of its users.

2. Data We Collect

2.1 Account Information

  • Sign in with Apple: Unique user identifier and email address provided by Apple (if user chooses to share).
  • Sign in with Google: Google account email address and profile information.
  • Guest Users: Automatically generated random nickname (no real identity information collected).

2.2 Game Data

  • Game statistics (games won/lost, completion times).
  • Leaderboard rankings.
  • Achievements and rewards.
  • In-app purchased items.

2.3 Device Information

  • Device type and operating system version.
  • App preferences (sound, vibration, theme settings).

2.4 Advertising Data

Our app uses Google AdMob services. AdMob may collect:

  • Advertising identifiers
  • Usage data

to serve personalized ads. For more information: Google Privacy Policy

3. How We Use Your Data

We use the collected data to:

  • Account verification and security.
  • Leaderboard and social features.
  • Saving game progress.
  • Managing in-app purchases.
  • Improving app performance.

4. Data Sharing

We do not sell your data. Data may only be shared in the following limited circumstances:

  • Firebase (Google): Data storage and authentication.
  • Google AdMob: Advertising services.
  • Apple App Store: Purchase transactions.

5. Data Security

Your data is protected by Firebase security infrastructure. SSL/TLS encryption is used.

6. Children's Privacy

Our app does not knowingly collect personal data from children under 13. Parents may request deletion of their children's data.

7. User Rights

You have the following rights:

  • Request access to your data.
  • Request deletion of your data.
  • Close your account.

To exercise these rights, use the "Delete Data" option within the app or contact us.

8. Contact

For questions: contact@sudokulogiclab.com

9. Changes

Changes to this policy will be announced within the app.

This Privacy Policy complies with applicable data protection laws including GDPR (General Data Protection Regulation) and CCPA (California Consumer Privacy Act).