jonboper
The quickest way to demo something is by playing it into your phone...
I use an app called Smart Voice Recorder - you can record in mp3 or wav formats, name your files upon completion, and instantly email your ideas to collaborators or upload them to the cloud or whatever. No multi-tracking or anything, but if you really want a quick sketch this is the way to go.

On Android, I use Field Recorder Pro. Excellent app!
 
https://play.google.com/store/apps/details?id=de.pfitzinger.rec
 

jonboper
The quickest way to demo something is by playing it into your phone...
I use an app called Smart Voice Recorder - you can record in mp3 or wav formats, name your files upon completion, and instantly email your ideas to collaborators or upload them to the cloud or whatever. No multi-tracking or anything, but if you really want a quick sketch this is the way to go.