I used this to study for SATs for about a month and just took them about an hour ago. All the things the app has taught me that I needed to improve upon only helped me out a very little bit. Im not sure if its a test by test basis but the one I just took had completely different wording on questions and even more difficult questions in general on the reading. While on the math I did not even get any help at all from the SAT UP up, all the things on studied for on there did not appear in this app. Again, I dont know if it was just the test itself but the only thing it helped was just working well under pressure.
KEWL98 about SAT Up - New SAT Test Prep and Tutoring, v3.0.4