Privacy

528 Lab has no accounts. Your browser keeps a random id so your sections, survey and ratings stay together.

We store: your answers and scores, the short survey you fill in before your first score, your section ratings and comments, and question reports. We use them to improve the tests and decide pricing.

If you give an email, we use it once to tell you when paid plans open, with the beta discount. We never sell or share it. Reply to that email to have it deleted.

Clearing your browser storage starts you fresh; what was already recorded stays anonymous.