Privacy Policy

1. Information We Collect

We collect the following categories of information:

Account Information

When you sign in via Google or Apple, we collect your name, email address, and profile picture from that provider.

Practice Data

When you use Thirty6, we store your practice activity including: questions answered, accuracy rates, session timestamps, subject areas practiced, and streak data.

Usage Data

We collect anonymized usage statistics including browser type, device type, and session duration. This data is aggregated and does not identify individual users.

2. How We Use Your Information

We use your information to:

• Provide and maintain the Thirty6 service, including question delivery and session tracking.
• Track your progress and personalize question recommendations based on your performance.
• Send service-related notifications (optional — you can opt out at any time).
• Improve our platform, question quality, and overall user experience.

3. Data Storage

User account data and practice session records are stored in a Neon PostgreSQL database operated by our infrastructure provider. Guest user session data is stored in your browser's localStorage and is not synchronized to our servers unless you create an account.

Authenticated users' session history is persisted in the database and accessible via their account.

4. Data Sharing

We do not sell your personal data to third parties or advertisers.

We may share anonymized, aggregated practice data for educational research and platform improvement purposes. This data cannot be used to identify you.

Sign-in data (Google, Apple) is handled in accordance with their respective privacy policies. We recommend reviewing those policies to understand how they handle your information.

5. Cookies

We use the following types of cookies:

• Essential cookies: Required for session management and authentication. These cannot be disabled without affecting your ability to use the platform.
• Analytics cookies: Used to understand how visitors interact with Thirty6 so we can improve the platform. These are optional and do not track you across third-party websites.

No advertising or cross-site tracking cookies are used on Thirty6.

6. Your Rights

You have the following rights over your data:

• Access: Contact us to request a copy of your practice data and account information.
• Deletion: Contact us to request permanent deletion of your account and associated data.
• Opt-out: You may opt out of non-essential cookies at any time. Essential cookies required for platform functionality cannot be disabled.

To exercise any of these rights, contact us at support@polsia.com. We will respond to all requests within 30 days.

7. Children's Privacy

Thirty6 is not directed to users under the age of 13. We do not knowingly collect personal data from minors. If we become aware that we have collected data from a user under 13, we will take steps to delete that data promptly. Parents or guardians who believe their child has provided personal information may contact us at support@polsia.com.

8. Contact

For questions or concerns about this Privacy Policy, contact us at:

• Email: questions@thirty6.com
• Support: support@polsia.com