You can remove the vocal of a song with this app. Now your phone can be a mini karaoke machine. The app is good for performers who cannot find the music of a song with no vocals. Two simple steps in the app: 1. Select a song from your iTunes library 2. After the song is processed, you can then turn on and off the vocal with the switch. This is the free version of Vocal Remover.
||Requires iOS 4.3 or later. Compatible with iPhone, iPad, and iPod touch.