Meh
Its okay for what it does, but the samples are not in stereo, and when you render a track, it sounds awful. I assume they made the samples in mono to save drive space on the iPad, but any serious musician would find this app to be a childs toy. If they would have made the samples in stereo, it might be a useful app. I gave it 3 stars for this reason. I like to fool around with it, but I would be embarassed to post any of the tracks I made with this app. By the way, in the app, you can pay to unlock the ability to add your own samples, but I am not sure if it accepts stereo or only mono samples. Most of the premium things like MIDI, cool FX, and import you have to pay extra for through an IAP.
ScottFin about
Launchpad - Beat Music Maker