What we store

This site has no account and no login. You do not give us your name or email. Here is everything the site keeps, and where it keeps it.

Saved in your browser

Two small things are saved on your own device, so the site works the way you left it:

• Which lessons you have finished. This drives the "done" count and where you pick back up.
• Your language choice, so the site opens in that language next time.

Both live in local storage — a small space your browser keeps for this site. They never leave your device and we cannot see them. Clearing your browser data erases them, and nothing breaks if you do.

What we do not do

• No account, no password, no login.
• No cookies.
• No selling or sharing of data. There is no data to sell.
• No tracking of you across other sites.

Visitor counts

We use Cloudflare Web Analytics to see how the site is used. It shows aggregate numbers only: how many times each page loaded, which sites link here, and roughly which countries visitors come from.

It sets no cookies. It does not build a profile of you and does not track you across other sites.

Questions

The code is open source. You can read exactly what it does, or open an issue, on GitHub.