Privacy
Short version: we measure whether the exercises work. We do not collect anything about who you are.
No cookies
This site sets no cookies. A random id is kept in your browser’s local storage so we can tell a returning visitor from a new one. It is not tied to a name, an email address, or anything else about you, it never leaves this site, and clearing your browser data removes it.
What we record
- Which character page you opened, and where you arrived from (search, another site, or direct).
- Whether you started an exercise, and what you did in it — including what you got wrong, so we can tell which parts are genuinely confusing.
- How long an exercise took, and whether you finished it.
What we do not record
- No names, no email addresses, no accounts.
- No IP addresses stored.
- No advertising or cross-site tracking, and no data sold or shared with advertisers.