Best of them all. – Guitar Machine - SteamPunk Guitar Tools Review

I've bought and downloaded more guitar tuner apps than I care to admit, and erased the crummy ones (Polytune and the Guitar Machine are the survivors). This is the best one I've found, and with the metronome and chord libraries, it's the best bargain in the music world.
Review by Bob Morency on Guitar Machine - SteamPunk Guitar Tools.