DONT BUY ANY ADD-ONS!!!
This app is/was a great tuning app. I actually paid for all of the add-ons and used it for several months... Until I updated my iPhone 6S Plus to iOS 9.2. I can redownload the free version but all of the add-ons I purchased from within the app did not transfer over, and apparently do not work with 9.2.
Needless to say, I will not be rebuying them. Not cool.
mjcidc about
PitchLab Guitar Tuner (FREE)