Arcadia GRE

This app has introductions and multiple practice sets for all three sections of the general GRE. If you get any answer wrong, an explanation is provided; and if you still don’t get it, your question will most likely be posted and resolved in the public forum below each question. This app also does not get you half way through a study session and beg you for money. There are multiple days worth of free material here to look at and learn from.

Has a good review of the concepts being tested, decent test questions, an explanation of every solution plus a comment area where I can ask questions and other users and/or a moderator or contributor will answer. Oh yeah, the math sample test (30 questions) even has options where you can write on the screen like scrap paper, pull up a calculator, etc.

Great for on the go! And I love being able to not only see an explanation and the correct answer at the touch of a button, but if I don't understand the explanation then I can post questions in the discussion section for more help! It's automatically scored and there's even a timer. Much better than trying to use a paper book and flipping through pages over and over but still not understanding an explanation or scoring tests myself. Also easier be discreet and carry around my phone/ipad than a regular computer that I never use.