Your practice stays yours.

Progress on this device

The app saves your selected level, reviewed lessons and up to 100 completed sessions in this browser’s local storage. Completed sessions include the date, practice speed and answers. We do not send those answers or your learning history to our server.

There is no account or cross-device sync. Clearing site data in your browser removes this history. Private browsing or blocked storage may prevent progress from being saved. Progress from a different website address does not transfer automatically.

Website access

Vercel hosts this website and processes normal connection information, such as IP address, requested URL and browser information, to deliver and secure it. See Vercel’s privacy policy. The site does not use advertising trackers or collect payments.

The app does not request your camera, microphone or location. There are no photo uploads or face analysis. Reference links lead to external websites with their own privacy practices.

Optional browser-assistant access

If your browser supports an assistant integration, the app exposes a read-only summary of completed sessions and reviewed lessons. It does not expose the answer to a current test question or change your progress.

Usage measurement

We use Vercel Web Analytics to count page visits and actions such as starting or completing practice. We do not send individual answers, scores, names, email addresses, or stored session history. Query strings and fragments are removed from the page URLs we send.

Vercel processes connection information to produce aggregate reports, including referrer, approximate country, browser and device type. Its analytics uses a temporary visitor identifier rather than analytics cookies. See Vercel’s analytics privacy explanation.

We honor Do Not Track and Global Privacy Control. A browser-local date helps count visits on later days; it is not an account identifier. You can turn measurement off below without affecting practice.