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Simple 12-string guitar tuner to tune up your 12-string guitar. This is for the standard eEaAdDgGBBEE 12 String Guitar tuning.

Tuning your guitar can be a difficult task for you if you are just beginning guitar. The good news is, the more you do it, the easier it becomes. A nicely tuned guitar can make your music sound a lot better and help you greatly while you're are just getting the hang of finger placement for notes.

A 12 string guitar is split up into 6 pairs of 2 strings. The thicker string of the pair is tuned to the same note and octave as a regular 6 string guitar. The thinner string, on the pair of strings 3-6, is tuned one octave higher than it's pair. On the first and second pairs, the notes are the same octave and each string in the pair should sound exactly the same to it's other string in the pair. This is eEaAdDgGBBEE tuning. The lowercase letters means that it is one octave higher then it's counterpart.

Touch the note for the string you want to tune and then turn the tuning pegs on your guitar and match it up with the note that is being played.

Tip: Make several passes tuning each of the strings. For example you might have noticed that if you have tuned all the strings once, and then back to the first one you tuned, it might be off a little bit. This is because you are increasing or decreasing the tension on each of the strings as you tune it and the instrument's body might bend ever so slightly due to this difference in tension. This causes the other strings to slightly change in pitch. So make sure you keep on checking and tuning the strings until all are in tune, so make several passes.

Also you can use this simple tuner for your standard 6-String Guitar, it is the same tuning, only the strings on the 6-String Guitar are EADGBBEE, which is right part of this 12-String Guitar Tuner. So use just right part of this tuner to tune up your 6-String Guitar.

Any questions using the App? Write support@tuneinstrument.com and we we'll get back to you promptly.

If you need to tune other music instruments simply have a look into our other applications: Violin Tuner Simple, Cello Tuner Simple, Banjo Tuner Simple, Mandolin Tuner Simple, Double Bass Tuner Simple, Viola Tuner Simple, Guitar Tuner Simple, Ukulele Tuner Simple, Bass Tuner Simple.

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iOS Store Category:

Primary: Music

Secondary: Utilities

App Store

Total Ratings



12-String Guitar Tuner Simple screenshot 112-String Guitar Tuner Simple screenshot 212-String Guitar Tuner Simple screenshot 312-String Guitar Tuner Simple screenshot 412-String Guitar Tuner Simple screenshot 5

Version History

Launched Sep 30, 2009 (over 10 years ago).

Releasing new versions every 10 months, on average.

Jan 20
Version 2.1.3

- Minor icon and splash screen fixes.

Jan 14
Version 2.1.1

- Allows 1/2 tune down/up transposed tuning. *Be careful to not brake string if you tune to higher tones.
- Improved slide view of the instrument.
- Added 64 bit support.

Dec 18
Version 2.0.1

- Fixed no sound issue, which confused users a lot. It was caused by mute switch on. In this version the sound is active even in silent mode, with mute switch on. Thank you for the feedback.

Sep 25
Version 1.9.1

Added IOS 7 and iPhone 5 S/5 C support.

Aug 07
Version 1.9

Fixed crash issues during the app start on some devices.

Minor additional fixes.

May 24
Version 1.7

Supports iPhone 5, iPhone 4S, iPad, New iPad, iPad 4. Added Retina Support, possibility to shift view to see whole guitar and guitar strings length. Added Support option, Other Apps option and option to visit us at Tuneinstrument.com directly from the app.

May 05
Version 1.2

Thanks for providing feedbacks to us. It helps us to improve application for you.

What is new in this version?
More intuitive user interface. Shows clearly which string belongs to tone and how it should sound to be in tune. This is helpful for beginners.

If you would like to tune other types of musical instruments visit www.tuneinstrument.com .

Feb 09
Version 1.1

Added support for: OS 2.2.1 - latest OS.

Oct 01
Version 1.0

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