playing 2 notes at a time confuses it, but it works for my banjo, trumpet, tenor drum, trombone, uke, it can get lost with voice so it might not be usable for voice training but I'm just a novice when it comes to voice. all in all I'm thrilled with it.

The Auto Speak button doesn’t work. I found it really annoying to have to take my hands off my guitar and manually click on the "Say Last Pitch" button for it to say the last pitch. It also has a numerical display, but it jumps around inconsistently sometimes without you changing anything and no background noise. This app does not do the only two things it is supposed to do. I am removing it from my computer. Adios la cucaracha!

Cool and handy little app, especially for the student. Kinda wish it could display in alto cleff for us poor viola players.

I’ve got it on iPhone and MacBook Pro. They don’t agree as far as tuning. I’m using a Bang and Olufsen mic. Sometimes it doesn’t “hear” the pitch and I have to close the app and open it again and then at the same volume it will hear the pitch.

Simple app, easy to use. Not much in the way of design. The voice telling you if the sound is in tune is optional.