Knowster - Privacy Policy

Last updated: March 30, 2026

1. Information We Collect

• Account Data: Email address, username, and password (encrypted)
• Gameplay Data: Quiz answers, scores, ELO rating, match history
• Purchase Data: In-app purchase history (processed via Stripe)

2. How We Use Your Data

• Provide and improve the quiz game experience
• Manage your account and matchmaking
• Process in-app purchases
• Display leaderboards and statistics

3. Data Sharing

We do not sell your personal data. We share data only with:

• Stripe: For payment processing

4. Data Security

All data is transmitted via HTTPS encryption. Passwords are hashed using bcrypt.

5. Data Retention & Deletion

Your data is retained as long as your account is active. You can request deletion of your account and all associated data by emailing knowster.app@gmail.com. We will process deletion requests within 30 days.

6. Children's Privacy

Knowster is not directed at children under 13. We do not knowingly collect data from children under 13.

7. Contact

For privacy inquiries, contact us at knowster.app@gmail.com