Hello everyone. We just released Fretboard Addict v1.7 for iOS that supports iOS 7 and squashes a few bugs. If you are running iOS 7, please update to the latest version.
We are also celebrating that Fretboard Addict has reached over 1 million musicians. In addition, we are about to celebrate our 3rd year anniversary in the iTunes App Store. Thank you for your continued support and feedback!