TyroTuner is a microphone-based utility that tunes the standard six-string guitar. Select what string you want to tune, and then play the guitar string...the needle will tell you whether you need to tune up or down.

The green zone represent +/- 5 centitones, within the just-noticeable-difference.

Features:
- Funiculus pitch-detection engine
- An extremely easy-to-use interface
- Hands-free auto-string-select mode
- User-controlled volume sensitivity


Compatibility:
iPhone: compatible
iPod Touch (2nd gen): requires external microphone
iPod Touch (1st gen): INCOMPATIBLE

This app uses the iPhone's internal microphone and thus will not work on the (first generation) iPod Touch.