GuiTuner VS - Visual Guitar Tuner app for iPhone and iPad

Accurate, automatic visual chromatic tuner for your guitar and other string instruments.
Shows which string is being played on the fret board allowing easy tuning without guessing.
Waveform spectrum shows precise tune of the pitch, making fine adjustments easy.

Shows frequency of pitch being played in Hz.
Shows exact chromatic scale pitch being played.
Shows out of tune errors in 1 cent accuracy (1/100th of a semitone).

Allows A440 frequency calibration.
Fast repsonse 0.25 seconds
Covers standard tuning EADGBE and other popular tunings such as Drop D tunings.
Accurate to +/-0.5 cent

Designed and tested by team of musicians and guitarist.