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An easy-to-use accurate audio/visual tuner for your guitar.

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Provides a simple interface to visually check whether the pitch for each string is low or high, and lets you "see" the pitch change as you wind/unwind the string tuning machines.

- Standard Tuning E-A-D-G-B-E based on concert pitch A440. (The International Organization for Standardization specifies the frequency for the note A in the treble stave as 440 Hz. ISO 16:1975)
- Accurate within 5 cents of note (very accurate)
- Developed in Austin, Texas, the "Live Music Capital of the World".
- Instead of visual tuning, just tap if you would like to hear an accurately tuned note.

What's New

Version 1.4

iOS 7 update

Ratings and Reviews

4.2 out of 5

53 Ratings

53 Ratings



I LOVE THIS APP! It’s great and makes highly accurate tuning so quick and easy. I’m so bummed it doesn’t want work with the latest version of iOS! Does anyone know if it’s going to be updated or if there’s a new and or similar app that works with iOS 11? I miss it!!

Also those who suggested an update that it detects the string rather than you choosing it: this could be great, unless you have toddlers who like to twist the tuning knobs as soon as you turn your back, haha, you’d be amazed how many keys a string can become out of key within 3 seconds when you have kids :)

Great App, Only One Reccomendation

Mike vg

This app is great, the fact that it uses the microphone to tune rather than sound matching with your ear is what makes it better than some others. The only small critique would be to auto recognize the string rather than selecting it, but other than that it works perfect and always tunes great.



I downloaded this app when I had my first iPhone 3 plus. Now, I’m unable to use it because this app is not compatible with my iOS11.1.1. Sometimes I’d like to find out who is the real person behind this stupidities. And see if that person is worthwhile to meet in person.


Peter Deelstra
2.8 MB
Requires iOS 5.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2013 Peter Deelstra


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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