If you’re doing some last minute cramming for the ACT this Saturday, or are planning on studying for the SAT over the summer, I would 500% encourage you to check out Testive. Seriously, it’s free and it’s fantastic. It throws questions at you and depending how you answer them, it works around you to have you focus on your weak spots. You can set up a study schedule, and even sign up for a free weekly online study sesh with an actual person and other actual students.