Cookies Policy
Last updated September 19, 2026
Zen Polyglot uses a small number of first-party cookies to make the app work. We don't use cookies for advertising, and our analytics provider doesn't use cookies at all.
Cookies we use
| Cookie | Purpose | Duration |
|---|---|---|
| learner_token | Anonymously links your spaced-repetition review progress to your browser, without requiring an account. | Long-lived |
| zen-polyglot-session | Standard session cookie used by the app framework to keep pages working correctly. | Session |
| theme | Stored in your browser's local storage (not a cookie) to remember your light/dark mode choice. | Until cleared |
Analytics
We use Umami for privacy-focused analytics. Umami does not set cookies and does not track you across sites — see our Privacy Policy for more detail.
Managing cookies
You can block or delete these cookies through your browser settings at any time. Since the learner_token cookie is what keeps track of your review progress, clearing it will reset your progress.
Questions
If you have questions about this policy, email us at info@zenpolyglot.com.