Simple. No beat subdivision capability, no button to set the tempo by tapping. Still can't find an app that beats Mobile Metronome.
A simple, quick and very accurate metronome with a natural sound and no ads.
Sound-Base Audio, LLC
Oscope is an Oscilloscope that displays audio waves taken from your microphone.
Audio analysis toolkit includes a scope, dB meter, FFT, spectrogram, and more.