Sign-in opens here soon. Until then, the free lessons work without an account, and your progress is saved on this device.
If you have already paid, your purchase is safe: it is linked to the email you used at checkout, and you will sign in with that email.
Use the same email you paid with. Your courses are linked to the email used at checkout.
You can use Exam Laboratory on up to 3 devices. Remove one you no longer use to add this one. You can remove 2 devices in any 30 days.
Up to 3 devices. Paid lessons open on one device at a time: the one you used most recently. You can remove 2 devices in any 30 days.
Check your connection and try again. The free lessons still work.