The app is good up to a point. I like that you can pan left or right, you can also build a set list and the it has a decent sound library. The only two problems that I find is that the tap tempo option is not accurate at all, also if you have this app running in the background it can skip a few beats and throw your band of time it you try to do anything else in your ipad.
Puretone Music Shop about Metronome: Tempo Lite, v3.8.1