Privacy Policy

Last updated: February 10, 2026

1. Information We Collect

We collect the following types of information:

  • Account Information: Name, email address, and password when you register.
  • Learning Data: Languages studied, assessment results, lesson progress, and flashcard performance.
  • Usage Data: Pages visited, features used, session duration, and device information.
  • Communication Data: Feedback and support requests you submit.

2. How We Use Your Information

  • Personalize your learning experience and track progress.
  • Adapt assessment difficulty and content recommendations.
  • Improve our platform and develop new features.
  • Communicate with you about your account and updates.
  • Ensure security and prevent fraud.

3. Data Storage and Security

Your data is stored on secure servers with encryption at rest and in transit. Passwords are hashed using bcrypt with a cost factor of 12. We implement industry-standard security measures to protect your information.

4. Data Sharing

We do not sell your personal data. We may share anonymized, aggregated data for research purposes. Your display name and learning achievements may be visible on public leaderboards — email addresses are never displayed publicly.

5. Your Rights

You have the right to:

  • Access: Request a copy of your personal data.
  • Correction: Update or correct inaccurate information.
  • Deletion: Request deletion of your account and associated data.
  • Export: Download your learning data in a portable format.
  • Opt-out: Disable non-essential data collection in Settings.

6. Cookies and Tracking

We use essential cookies for authentication and session management. We do not use third-party advertising trackers. Analytics data is collected to improve the service and can be opted out of in Settings.

7. Children's Privacy

Polylango is not directed at children under 13. We do not knowingly collect data from children under 13. If you believe a child has provided us with personal information, please contact us.

8. 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. Your continued use after changes constitutes acceptance.

9. Contact

For questions about this Privacy Policy, please visit our Contact page.