Privacy Policy

Last updated: January 2025

1. Information We Collect

Account Information

When you create an account, we collect:

• Email address
• Password (stored securely hashed)

Usage Data

We automatically collect:

• Study progress and statistics
• Streak and learning history
• Device and browser information
• IP address (for security purposes)

Payment Information

Payments are processed by Stripe. We do not store your credit card details. Stripe's privacy policy applies to payment processing.

2. How We Use Your Information

We use your information to:

• Provide and improve our service
• Track your learning progress
• Send important account notifications
• Prevent fraud and abuse
• Comply with legal obligations

3. Data Storage

Your data is stored securely on servers in the United States. We use industry-standard encryption for data in transit and at rest.

4. Data Sharing

We do not sell your personal information. We may share data with:

• Service providers (hosting, payment processing)
• Law enforcement when required by law

5. Public Decks

When you share a deck publicly:

• Your masked username appears as the creator
• The deck content is visible to all users
• You can make decks private at any time

6. Cookies and Local Storage

We use:

• Local storage to save your preferences and progress
• Session cookies for authentication
• No third-party tracking cookies

7. Your Rights

You have the right to:

• Access your personal data
• Correct inaccurate data
• Delete your account and data
• Export your data
• Opt out of non-essential communications

8. Data Retention

We retain your data as long as your account is active. After account deletion, data is removed within 30 days, except where legal retention is required.

9. Children's Privacy

EngDeck is not intended for children under 13. We do not knowingly collect data from children under 13.

10. Changes to This Policy

We may update this policy periodically. We'll notify you of significant changes via email or in-app notification.

11. Contact Us

For privacy questions or data requests, contact us at privacy@engdeck.com.