The app is iPhone only sadly - Android might be coming out.
I've got 5+6 and will be using it in anger over Easter. Not sure how accurate the maps are yet, but it's very "dry".
Literally nothing more than maps (no route topos), route numbers, grades and a single sentance per problem.
Probably about 20 photos in the entire book.
So in terms of pre-trip psyche, it doesn't deliver. But for route finding, top notch.