As a string teacher I use this app on a daily basis and I love it. It hears string bass notes which is super helpful and works well on harmonics as well! Love it. My only suggestion/request is can we add a widget to the today screen/notification bar? I would love to not have to unlock my phone every time a student bumps their instrument and I have to retune everything. That tiny change would revolutionize time management in the classroom setting.
Flea350 about Cleartune, v2.1.3