HotPaw Talking Tuner is a hands-off, sound-activated, talking, chromatic, musical instrument tuner. It talks to tell you if your instrument is in tune or not; so you don't even have to look at it or touch the display. Talking Tuner uses speech synthesis, and works with or without VoiceOver being enabled.

Talking Tuner will listen for a note to be played, and then, after waiting for the end of the sound (so as not to talk over it), will speak the note name, and how many cents sharp or flat the end of the note is estimated to be.