This app has the best interface of all the metronomes Ive tried (had to blow a few bucks). However, none of them appear to be very steady, especially when you get into 16th notes.....not sure why this would be. Like another reviewer mentioned-when the phone screen goes black, it just goes haywire.
This app is fine if youre just going to use it to reference tempos. But you would never be able to use it in a playing situation. Ill be sticking with my Tama Rhythm Watch.
4limbs about Metronome