Privacy Policy

Last updated: January 2026

1. Who we are

Zizzle is a Mandarin Chinese learning platform operated by Zizzle eLearning Inc. If you have questions about this policy, contact us at lukas.lohove@zizzle-app.com.

2. Information we collect

  • Account information — email address and username when you register.
  • Learning progress — which characters you have studied, quiz grades, and spaced-repetition intervals.
  • Usage data — pages visited and quiz events, collected via PostHog analytics to help us improve the product.

We do not collect payment information. We do not sell your data to third parties.

3. How we use your information

  • To provide and improve the Zizzle learning service.
  • To sync your study progress across sessions and devices.
  • To understand how features are used so we can build better ones.

4. Data storage

Your account data is stored securely on servers hosted by Railway. Analytics data is processed by PostHog. Both services are located in the United States or European Union.

5. Cookies & local storage

Zizzle uses browser local storage to keep you logged in between visits. We use PostHog cookies to track product analytics. No advertising cookies are used.

6. Your rights

You may request deletion of your account and associated data at any time by emailing lukas.lohove@zizzle-app.com. We will process your request within 30 days.

7. Third-party services

  • Railway — backend API hosting (United States)
  • Vercel — frontend hosting (United States / Edge)
  • PostHog — product analytics. PostHog may use cookies. You can opt out via your browser's cookie settings. See PostHog's privacy policy.

We do not use Google Analytics, Facebook Pixel, or any advertising trackers.

8. Children's privacy

The Service is not directed at children under 13. We do not knowingly collect personal information from children under 13. If you believe a child has provided us with personal data, please contact us and we will delete it promptly.

9. Governing law

This policy is governed by the laws of the State of Utah, United States. If you are located in the European Union, you may have additional rights under the GDPR. To exercise any such rights, contact us at lukas.lohove@zizzle-app.com.

10. Changes to this policy

We may update this policy from time to time. Material changes will be noted at the top of this page with a revised date.