This app was mentioned in 1 comment, with an average of 5.00 upvotes
Can confirm, works on Android as well. Your user ID is the email address you used to sign up with.
Steps:
Thanks OP for letting us know!
Note: The description says you need to be a registered course student, but I am not. Although I did buy the Kaplan 7 book set and registered those (4 full length exams for free), not sure if that is a factor.