This software comes directly from the source,the test makers. It is not one of the best software for the test. It consists of two computer-based GRE General Tests, sample Analytical Writing topics, scored sample essays and reader commentary, test-taking strategies, a math review, and test tutorials. The software is free to download. Most test takers say the score they got in 2 tests of powerprep matched their actual test score. So powerprep can give a powerful preview of what you will score in your test. D ownload GRE PowerPrep Software Free.