With the coming update of AudioShare, one can do sound-on-sound through Audiobus. Here a Gestrument-loop is played in AudioShare, mixed with Orphion and recorded back into AudioShare, trimmed and uploaded straight to SoundCloud from the app.
Coming new tone generator app The Oscillator, recorded multiple times with sound-on-sound technique into AudioShare.
NOTE: The glitches are part of the process where earlier takes were looped in AudioShare while recording on top of it. They are not bugs or errors. I like them.
The Oscillator is coming soon: http://kymatica.com/Software/Oscillator
Uploaded with AudioShare app - http://kymatica.com/audioshare