I noticed that some comments have good intent, but I think this app works fine as is. I use a timer app that can be set to repeat an alarm for as long as I want, and I use a separate metronome, since I am tone deaf, this way I can hear it. The main use for timing in this app is awesome. However, unless you are not the one getting your hands "dirty" then the app is fine. If you are the one working the code, then you might not want to touch your phone, and there is not an app for that. But a clear plastic bag would work I guess. Of course I am talking about on scene, not in hospital. Still I highly recommend this app as it is.