I have a few questions about this app:
1. The app's description on Google Play indicates that it has questions from Kaplan, Knewton,
Manhattan GMAT, etc. I'm thinking of using this app as a supplement to official sources, but since I intend to take official tests like Exam Pack 1 and Exam Pack 2, I don't want to have seen the questions because that would inflate my score. Does the app contain any official past questions or just simulated questions?
2. The app's description indicates that it's a free product, even though it shows ads. Is there a catch, like after accessing a certain number of questions, you have to pay more to view more questions, or are all 4000 questions truly free?
3. Does the app provide enough theory to cover all possible gaps in my knowledge, or does it contain only questions?
Thanks