I have the physical Gameboy Advance version and I love it. I love this app too. Its even better on some points (more channels, possibility to link several loops to have a bigger one, sampling!). I miss maybe the polyphonic channel (I know you can sample but its not the same :)). Anyway, there is one feature it really lacks : a MIDI clock sync. Pleeeaaase! If I may, Audiobus support for sampling other apps or route the NL output to an effect or DAW app, would be great too.