How many PowerPrep tests are there?

ETS offers five official PowerPrep practice tests. Two are free: PowerPrep 1 (untimed and unscored — good for getting familiar with the format and question types) and PowerPrep 2 (timed, with Verbal and Quant scores). Three more are available as PowerPrep Plus ($44.95 each), all timed and scored, with detailed explanations and score reports. That gives you five unique tests total, though only four provide section scores.