Do I need an account to use this site?
No. Nothing here requires an account, an email address or a card. The practice tools run in your browser and your answers are not sent anywhere.
How do I restore a purchase on a new device?
Purchases are tied to your App Store or Google Play account. Sign in with the same account and use the restore option in the app. If it does not appear, email us with the store receipt and we will sort it out.
Does the app work offline?
Yes, fully. Questions, explanations and progress all work without a connection, which matters more than it sounds for study that happens on commutes.
I think a practice answer is wrong
Tell us, and include why you think so. If you are right we fix it and thank you properly. If the answer stands we will explain the reasoning rather than just assert it, which is usually more useful than the correction would have been.
Questions we cannot answer
Anything about your own licence, application or eligibility belongs with GREC. Anything about scheduling or test centres belongs with PSI. Contact details are here.