Guitar Tuner: Chromatic

Guitar Tuner: Chromatic is a free chromatic tuner for guitar and bass that uses pitch detection through your iPhone or iPad microphone. The visual tuner shows a live Hz reading and color-coded feedback so you can see when a string is in tune. Auto Mode detects the string you are playing, and 15 tuning presets include Standard, Drop-D and Open-G. Guitar and bass have separate preset libraries.