You are among the first people using it, and it is free while that is true. Expect rough edges: questions may be added or reworded, and we may reset practice history while we get the bank right. Your account and your enrolment are not affected by that. When something is wrong or confusing, tell us — there is a button at the bottom of every page, and a person reads every one of them.

If you have been enrolled and see nothing, tell your instructor — it means your program has not been opened yet.

Goes straight to the people who can change it. Beta means your report actually moves something.