Privacy Policy for Duo Math

Last Updated: January 2026

1. Introduction

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

2. Information We Collect

2.1 Information You Provide

• Player Names: Optional names you enter for single or two-player game modes (stored locally on your device)
• Game Statistics: Your scores, accuracy, and game history (stored locally on your device)

2.2 Automatically Collected Information

• Analytics Data: We use Firebase Analytics to collect anonymous usage data including:
  • Game mode preferences
  • Difficulty level selections
  • App usage patterns
  • Device information (model, OS version)
• Advertising Data: We use Google AdMob to display ads. AdMob may collect:
  • Device identifiers
  • IP address
  • Ad interaction data

3. How We Use Your Information

We use the collected information to:

• Provide and maintain the game functionality
• Track your personal game progress and statistics
• Improve app performance and user experience
• Display relevant advertisements
• Analyze app usage patterns to enhance features

4. Data Storage

• Local Storage: Game data, player names, and statistics are stored locally on your device using SharedPreferences
• Cloud Storage: We do not store any personal data on our servers
• Data Retention: Local data remains on your device until you uninstall the app or clear app data

5. Third-Party Services

We use the following third-party services:

• Firebase Analytics: For app analytics and performance monitoring
  Privacy Policy: https://firebase.google.com/support/privacy
• Google AdMob: For displaying advertisements
  Privacy Policy: https://policies.google.com/privacy

6. Children's Privacy

Duo Math is suitable for all ages. We do not knowingly collect personal information from children under 13. The app does not require account creation or personal information submission. Parents can review and delete locally stored game data by clearing the app's data in device settings.

7. Data Security

We implement appropriate security measures to protect your information:

• All data is stored locally on your device
• No personal data is transmitted to external servers
• Third-party services (Firebase, AdMob) use industry-standard security measures

8. Your Rights

You have the right to:

• Access your locally stored game data
• Delete your data by clearing app data or uninstalling the app
• Opt-out of personalized ads through your device settings
• Request information about data collected by third-party services

9. Advertising

We display ads through Google AdMob. You can opt-out of personalized advertising by:

• Android: Settings → Google → Ads → Opt out of Ads Personalization
• iOS: Settings → Privacy → Advertising → Limit Ad Tracking

10. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by updating the "Last Updated" date. Continued use of the app after changes constitutes acceptance of the updated policy.

11. Contact Us

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

Email: services@hope3.org
App: Duo Math - The Ultimate Mental Duel

12. Consent

By using Duo Math, you consent to this Privacy Policy and agree to its terms.

© 2026 Duo Math. All rights reserved.