Marketplace glitch

First impression of app of the app is favorable. I am using the app on my iPad2. I like the interface and the option to view the solution (and explanation) as you progress. The comment board has been useful at times when the explanation is not entirely clear upon first read. I had an issue with the marketplace screen but contacted app support and received a prompt response. I highly recommend. I give this app 5 stars!

choeph about GMAT +