Privacy Policy for MathSolver App

This Privacy Policy ("Policy") explains how HT Team ("we," "us," or "our"), the developer of the MathSolver mobile application ("App"), collects, uses, stores, and protects your personal information. By using the App, you agree to the practices described in this Policy. If you do not agree, please do not use the App.

1. Who We Are

We are HT Team, located in Hanoi, Vietnam. You can contact us at:

We are the sole developers and owners of the MathSolver App, and we are committed to protecting your privacy.

2. What Data We Collect

• Profile Information: Name or contact details (if applicable).
• Images: Photos or images uploaded for homework solving.
• Messages: Communications sent through the App or support channels.
• Payment Information: Subscription-related details via third-party providers.
• Survey Data: Responses to surveys or feedback.
• Device and IP Information: Device type, OS, and IP address.
• User Settings: Language and other app preferences.
• User Behavior: Feature usage, frequency, and navigation patterns.
• Cookies: Preferences such as language and settings.

3. How We Use Your Data

• Improve services and solution quality.
• Analyze user behavior to optimize performance.
• Provide homework solutions from uploaded images.
• Send subscription and update notifications.
• Marketing and promotional communications.
• Process payments and manage subscriptions.

4. Data Storage and Sharing

Storage: Data is stored on secure cloud servers with encryption and firewalls.

Sharing: We do not share your data except in the following cases:

• Payment providers (Google Pay, VNPay, Visa).
• AI model providers for image processing.
• Legal requirements.

5. Data Security

• Encryption in transit and at rest.
• Secure servers and firewalls.
• Regular security audits.

No system is 100% secure. If a data breach occurs, we will notify users and authorities as required by law.

6. Your Rights

You may request deletion of your data by:

• Using the "Delete Data" option in the App.
• Contacting us at hoangthanhdinh1@gmail.com.

7. Compliance with Laws

• Vietnam’s Cybersecurity Law
• GDPR (European Economic Area)
• CCPA (California, USA)

The App is intended for users aged 13 and older. We do not knowingly collect data from children under 13.

8. Third-Party Services

• Payment Services (Google Pay, VNPay, etc.)
• AI Model Providers

9. Cookies and Tracking Technologies

Cookies are used to store preferences such as language and user settings. We do not use tracking pixels.

10. Notifications and Changes

We may update this Policy from time to time. Changes will be notified within the App. Continued use means acceptance of the updated Policy.

11. Contact Us

12. Miscellaneous

If any provision is found unenforceable, the remaining provisions remain in effect. We reserve the right to modify data practices as needed.