Last updated: 2026-11-07.
Your progress (which items you got right or wrong, your quiz settings, and the tab you last used) is stored in your browser's local storage. It stays on your device. We don't receive it.
We don't ask for an account, a name, or an email address. The drills don't send your answers anywhere.
Clearing your browser's site data for symboldrill erases your progress. You can export a backup from the drill page at any time, and import it later.
Advertising is not enabled yet. Before ads are turned on, this policy will be updated to name the advertising provider, describe the cookies it sets, and explain how you can choose whether to consent.
Questions about this policy: see the contact page.