App should stay open

This app would be wonderful if it didnt stop every time your phone goes to sleep; I need longer than a minute at a time to practice. Really simple to fix, guys. Also, a metronome that can accelerate and decelerate over a selection of durations is something Id gladly pay an extra dollar for. But thats a want. I need the thing to stay on until I turn it off.

Fox-tooth about theDrumDictionary, v3.0.2