One of the best!

Very deep, very flexible. You can export to wav directly from the app or exchange song files with your computer and play them in the computer version of SunVox (which is currently free).

The iOS version and the desktop versions have the same capabilities. I love this app and use it to make sounds/loops/tracks i reuse in other music software too.

Cant think of a better value for the price!

Try it on the computer before buying it on iOS if you are unsure.

turbolition about SunVox, v1.6.5