I’ve been messing around with Loopy HD for quite a while now but had no idea these features existed! They’re pretty darn useful if I do say so myself…
- Drag loops onto each other
If you’re running out of loops, you can drag one onto another to free up space. - Twist loop to change timing
You can twist a loop with two fingers to adjust the timing. This is really only useful if you recorded a loop with just one ‘note.’
- MIDI control
You can set up MIDI events to control all kinds of stuff inside the app:
With a MIDI foot switch you could control Loopy in the background while you play another touch instrument app, for example.
Great app, highly recommend it!
Loopy HD is iOS universal 
Loopy is for iPhone only
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