Cookie Policy
Last updated August 14, 2026.
The short version
This site doesn't set cookies for tracking, advertising, or analytics. There are no third-party cookies at all. The only thing saved on your device is your practice progress, and it's saved using local storage, not a cookie.
Cookies vs. local storage
A cookie is a small piece of data a site asks your browser to attach to every future request, which is what makes cookies useful for tracking across visits and sites. Local storage is different: it's a bucket of data your browser keeps for a given site, that the site can read back later, but that's never automatically sent anywhere. Regulations that talk about "cookies" (like the EU's ePrivacy rules) generally cover both, so we're documenting local storage here the same way we would a cookie.
What's actually stored
Three local storage entries, all under this site's own domain, holding your spaced-repetition and unlock progress:
| Key | What it holds |
|---|---|
zipf-curriculum-v1 | Which nouns you've unlocked and introduced |
zipf-cases-v1 | Mastery state for each noun/case/article combination |
zipf-plurals-v1 | Mastery state for plural forms |
None of it identifies you. There's no name, email, IP address, or device ID in any of it, just counters and timestamps for which German forms you've practiced and how well.
Clearing it
Clear it any time through your browser's site data settings for this domain. Doing so resets your progress back to the start, since nothing is backed up anywhere else.
Everything else
See the Privacy Policy for the one third-party request this site makes (loading fonts from Google). That request doesn't set a cookie either.