Bass Tuner BT1

Excellent. Does exactly what it says. It's the best Bass tuner I've ever used. I've had other tuners, some of which can't even register notes low enough to tune a bass, and some that claimed to be bass tuners but were always a little bit off, or overloaded with ads. This has a very small, non intrusive banner ad in the free version, and the remove ads cost was 19 Australian cents, which I was happy to pay. This is how ad supported/free apps should be made. This dev is great and I've ended up with their chord chart app and guitar tuner app as well. Get this though.