Thanks for the important information.
I want to judge my progress so I thought powerprep could be a better option, as I don't want to waste Gmatprep for the diagnostic test.
My question is, do the questions of GmatpreP test 1 and 2 overlapp, i.e. Suppose I keep on repeating test 1 (By reinstalling) and don't touch test 2 ( which I will do just before real exam), So what are the chances I will get repeated questions at gmatprep test 2? I dont want to take any chance to waste test2.
Also there is an older version of Gmatprep, if I exhaust all the questions from olderversion of gmatprep(both the tests), what are the chances I will get repeated questions at newer version of gmatprep test 2.
My biggest concern is to keep newer gmatprep test 2 for final evaluation and exhaust all the other official question from gmatprep ( both older and newer version)
Please advice me.