rmats that are used are MP3 and WAV, so you won't have any issues when it comes to playing your notes anywhere.
The truth is that Moo0 Voice Recorder doesn't have a lot of uses, but that on its own is more than enough when all you really want is to take quality voice notes once in a while.
Among its options, which are all very basic, an interesting feature is the capability to overwrite and pause recordings to eliminate unnecessary silences.