Privacy Policy

Last updated: February 10, 2026

1. Data We Collect

Account Data: When you sign in with Google, we collect your email address, name, and profile picture.

Usage Data: We collect information about how you use DeckStudy, including study sessions, flashcard interactions, and feature usage to improve our service.

Content Data: Text you submit for flashcard generation is processed by our AI and stored to create your decks.

2. How We Use Your Data

  • To provide and maintain the DeckStudy service
  • To generate flashcards using AI (DeepSeek)
  • To implement spaced repetition scheduling
  • To process payments (via Paddle)
  • To send service-related communications
  • To improve and optimize our platform

3. Third-Party Services

We use the following third-party services:

  • Google OAuth: For authentication. Subject to Google's Privacy Policy.
  • DeepSeek AI: For flashcard generation. Your submitted text is sent to DeepSeek's API for processing.
  • Paddle: For payment processing. Payment data is handled by Paddle according to their Privacy Policy.

4. Cookies

We use essential cookies for authentication and session management. We do not use tracking or advertising cookies. You can disable cookies in your browser settings, but this may affect functionality.

5. Data Storage & Security

Your data is stored securely in encrypted databases. We use industry-standard security measures to protect your information. However, no method of transmission over the Internet is 100% secure.

6. Your Rights (GDPR)

If you are in the European Economic Area, you have the right to:

  • Access: Request a copy of your personal data
  • Rectification: Request correction of inaccurate data
  • Erasure: Request deletion of your data ("right to be forgotten")
  • Portability: Request your data in a machine-readable format
  • Objection: Object to processing of your data
  • Restriction: Request restriction of processing

To exercise any of these rights, contact us at privacy@deckstudy.com.

7. Data Retention

We retain your data for as long as your account is active. When you delete your account, we will delete your personal data within 30 days, except where required by law.

8. Children's Privacy

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

9. Changes to This Policy

We may update this privacy policy from time to time. We will notify you of significant changes via email or in-app notification.

10. Contact

For privacy-related inquiries, contact us at privacy@deckstudy.com.

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