Very good app!

I was pleasantly surprised with this app - it does just what it says, and it EXPORTS altered music to wav and mp3. Exporting is usually reserved for apps that cost $50, so this was a welcome surprise. My only request is that it would allow you to specify exactly what percentage to change the speed (e.g. 75%, 50%), instead of dragging a dial. Something similar to the tempo dialog boxes, but for speed percentage. This would make it easier for me to sync exported music to videos, which is what Im using this app for.

johnkew about Rubber Band Audio