Definitely drop the $24 for the prep. (and make sure to cancel before the auto renew) I did the AAssessment last week and got 9 (yes, nine!) different types of tests in mine. All of them were in the prep software linked above, albeit slightly different. For example, the tunnel and its obstacles were a bit different style and the colors of the Sudoku shapes were different. I'd suggest writing down the formulas for determining circumference, volume, etc and having them handy. You're encouraged to use a calculator, which I took to mean "smartphone" and I had to waste time googling that during the word problem portion. It is not monitored. (DAL and UAL assessments are monitored)