Prezi Presentation

There is also a Prezi Presentation which visualizes the transitions between the screens of the app (akin to a state chart with individual screens as states and arrows starting at a button for transitions between screens). Prezi requires Adobe® Flash® in the browser, so it won't be displayable on most mobile devices.

Click on picture to enlarge it or here

If you cannot view the Prezi Presentation, then you can have a look at the static Screenshots.