RK Guitar Tuner for Mac5.4.2

Free alternative. From Apple's site http://www.apple.com/support/garageband/hottips/ "GarageBand 3 features a built-in instrument tuner to help you get your instruments in perfect tune. To use it, enable a Real Instrument track for recording (click the red Record Enable button on the track). In the time display, click the tuning fork icon in the upper left corner to display the instrument tuner. Make sure that your instrument is connected to your computer, and play a note. The tuning meter will tell you what note is being played and how far off you are from the proper pitch-shoot for the zero (0) mark. The tuner displays a green light once you've hit perfect pitch."

It works quite well with the built in mic in my Powerbook. I am horrible at keeping my guitar in tune so this will help!

Would not work in Classic with either Jaguar or Panther: app. kept quiting and would not see the audio input. Works great when computer is booted with OS 9.2.x. Being able to use other tunings would be nice. Ratings are for OS 9.2.x. You can buy a self contained electronic tuner that basically does the same thing, and more, for $14.00.