Should mention in app purchases
Almost everything requires an in app purchase of 8 bucks. Should say at least mention that somewhere in the description so you don't mislead people that the content is free.
Good app, lots of errors
The app runs well, and most of the questions, answers, and explanations are great. However, there are a lot of spelling error. Also, there are numerous questions with incorrect answers (e.g. the correct answer is marked as (a) but then explanation points to (b) being the correct answer).
