Privacy Policy

Last updated: January 12, 2026

Welcome to One Left ("we," "our," or "us"). We respect your privacy and are committed to protecting your personal data. This Privacy Policy explains how we collect, use, and safeguard your information when you use our mobile application.

1. Information We Collect

1.1 Information You Provide

Nickname: If you choose to participate in the global ranking, you may provide a display name (nickname).

1.2 Automatically Collected Information

Anonymous Identifier: We use Firebase Authentication to create an anonymous user ID. This does not contain any personal information and is used solely to track your game statistics.
Game Statistics: We collect gameplay data including best completion time, number of moves, total games played, and wins.

                Important: We do NOT collect your name, email address, phone number, location, or any other personally identifiable information.
            

2. How We Use Your Information

We use the collected information to:

Display your scores on the global leaderboard
Track your personal game statistics
Improve the game experience

3. Data Storage and Security

Your data is stored securely using Google Firebase services. We implement appropriate technical and organizational measures to protect your information against unauthorized access, alteration, or destruction.

4. Data Sharing

We do not sell, trade, or rent your personal information to third parties. Your nickname and game statistics may be visible to other players on the global leaderboard.

5. Third-Party Services

Our app uses the following third-party services:

Firebase (Google): For authentication and database services. Firebase Privacy Policy

6. Children's Privacy

One Left is suitable for all ages. We do not knowingly collect personal information from children. The app does not require any personal data to play.

7. Your Rights

You have the right to:

Play the game without participating in the global ranking
Request deletion of your data by contacting us
Uninstall the app at any time, which will remove all locally stored data

8. Data Retention

We retain your game statistics for as long as your account exists. If you wish to delete your data, please contact us and we will remove your information from our servers.

9. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the "Last updated" date.

10. Contact Us

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

Email: brotto@brotto.io