Perfect, Perfect, Perfect
Absolutely the best app that I have found to identify the notes that I’m playing on my violin. I play a piece , a note doesn’t sound correct, I check this apps screen to determine the note that I’m playing. The app quickly shows whether I’m high, low, or right on the mark. Go to settings and increase the time that it takes for your phone go to sleep so that you can use this app properly - Settings - Displays & Brightness - Autolock. You will love this app. It’s a pleasure to use!