Helpful! It’s a really solid app. – ACT Mastery 2017 Prep Review

So the app is really nice. They split everything into main groups from math, science, reading, writing etc. And then they have sub groups within the section you pick. You can see your accuracy and how much time you spend on q’s and what you need to improve on.. it’s pretty solid. I haven’t had problems. :)
Review by Tylerrwbu on ACT Mastery 2017 Prep.