Poor
No try before you buy means once you’ve paid…unlucky. The app isn’t great, between lots of spelling and grammar errors to the overall feel of the app being very basic, and not in a good way. You have the sample exam papers but it doesn’t show you the right answer at any point never mind pointing out areas of focus…kind of defeats the object really if you can’t fill in the gaps of your knowledge! For the price I’d google and go elsewhere