Achievements

A summary of everything you have studied: questions covered, tests taken, study streak and badges unlocked.

Reading the study data on this device…

Where does this data live? Revision progress, hazard-perception scores, your study streak and study time live in this browser — no sign-in, nothing sent anywhere. Only your tests are stored on the server, and only once you are signed in. Clearing browsing data or switching devices starts the on-device part from scratch.