Privacy

Short version: we keep your practice progress so you don’t lose it — and nothing that identifies you.

What we store

Your answers, streaks, achievements and mistakes to review are saved in your browser (IndexedDB) and synced to an anonymous account on our server, so you can continue on another device. The account is just a random ID: no name, no email, no password. Preferences (theme, text size, sound) stay in your browser only.

Linking devices

A one-time code (valid for 10 minutes) connects another device to the same anonymous account.

Your choices

• Turn sync off and delete the cloud copy at any time in My progress.
• Download your data as a file with Download backup.

Tracking

There are no analytics and no advertising cookies.

Text-to-speech

“Listen” buttons use your device’s built-in voices. Depending on your browser, the text may be processed by the browser vendor’s speech service.

Contact

Questions about privacy? Let us know.