Needs updating

This app has great potential. However it needs the following updates:

Update graphics for retina displays (iPhone 4 and up)

Improve audio quality of the "speedtrainer", it sounds TERRIBLE when songs are slowed down! Other apps do a much much better job of slowing down songs for learning without that glitchy echo effect. The "no voice" option works ok, but what it really needs is the option the change the pitch up and down by semitones like all the other apps do.

The metal amp only sounds metal when you put an overdrive on it and it sounds great like that but really really noisy.

SmolderingAshes about AmpliTube, v2.2.2