Privacy policy

The short version: no account, no cookies, no analytics and no ads. Your practice progress stays in your own browser.

Updated .

What the site stores

  • Your practice progress, such as streaks, practice exam scores and your best code lookup time, is saved in your browser's local storage on your device. It never leaves your device and we cannot see it. Clear your browser's site data to delete it.
  • No cookies are set and there is no analytics or tracking script.

Hosting

The site is a set of static pages served by our host. Like any web server, it may keep standard request logs (IP address, page, time and browser) for security and to keep the service running. We do not use them to identify or profile visitors.

Changes

If this changes, for example if accounts or payments are ever added, this page will say so first, with its new date.