But it needs three things

This is a great application but it does need three things in its updates: ( in order of importance)
1: a way to delete undevidual tracks,
2: playback played though the loud speacker rather than the ear piece speaker (for playback without headphones) and;
3: a metronome with and optional audible feature,
Thanks for the great cost efficient alternative for the up and coming

MrJeffreyW about FourTrack