Frequently Asked Questions
Does My Premium Membership Ever Expire?
Can I use my Premium account on another computer or smartphone?
I cannot login to my Premium account. What should I do?
How can Pass Probability help me prepare?
Can I share my Premium account with anybody?
How do I enable Night Mode?
What is Challenge Bank?
I answered a test question incorrectly, but the number of questions in my Challenge Bank did not increase. Why?
I entered the wrong e-mail address when I signed up for Premium.
Where do I find Answer Popularity in Premium?
I've just upgraded to Premium, but some of the tests are still locked!