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GuitarTuna – Tuner for Guitar, Bass and Ukulele

By Yousician Ltd

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GuitarTuna is the easiest, fastest and most accurate tuner app in the world!
The ultimate tuner for guitar, bass, ukulele and all popular string instruments. GuitarTuna has been downloaded over 20 million times and is used by beginners and experts!

Why is it the world’s most popular tuner ever built?
• Simple and easy to use. Works with both electric and acoustic guitars and string instruments using the built-in microphone. No cables needed.
• Perfect for complete beginners. Recommended by guitar teachers.
• Simple and intuitive. Clear visual feedback with signal history.

Award winning audio technology:
• Built on the world's most advanced audio recognition algorithm - the same technology powering Yousician
• Professional accuracy for advanced players
• Auto mode tuner (for super fast tuning, hands-free, string by string)

Advanced tools for all musicians:
• Metronome: set at any tempo, change the beat manually or by tapping at the desired speed
• 6 Ultimate Chord Learning Games: learn, practice and master chords, and develop the ability to recognize them by ear
• Chord library: find any chord diagram easily and hear how it should sound
• Learn Guitar Songs: 4 songs with guitar notation (tabs) to play along and test your skills
• Alternative tuning sets

(we are working on the chromatic tuner feature, thanks for the suggestions!)

Works with:
• Electric and acoustic guitars
• Bass
• Mandolin
• Ukulele
• Viola
• Violin
• Cello
• Fiddle
• Balalaika
• Banjo
• Many other string instruments

Over 100 tunings available, including:
• Standard
• Drop-D
• Other drop tunings
• Open tunings
• Half step down
• 7-string tunings including drop-A
• 12-string

Additional features:
• Works in noisy areas, with background noise cancellation technology
• Designed by guitarists for guitarists and developed by the world’s leading audio engineers
• Improve your skills in chords, riffs, tabs, and ear training, and increase your picking speed, just like you would with guitar lessons / classes
• make the app look like your instrument by choosing different headstock visuals

Please be careful:
If it is your first time tuning the guitar or instrument, please be careful. We recommend watching a YouTube tutorial or asking a guitar player how it's done. Beginners risk snapping strings with improper tuning techniques.

Send us feedback:
Got ideas to make GuitarTuna even better? Send your ideas and suggestions to:

Download our other free music learning app:
Yousician - the best way to learn, practice and master the guitar, piano and ukulele

*** Ranked the #1 Education app in 119 countries ****
*** Selected twice as Editor's choice by Apple in 2015 ***
*** Over 25 million users ***

Learn more about Yousician on Youtube and Facebook

What's New in Version 4.0.5

We've updated GuitarTuna with a brand new look and feel. We hope you like it!

If you have any questions or feedback, don't hesitate to send us an email at


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Customer Reviews

Guitar Tuna quite helpful

Newbie Guitar players should all get this app as well as experienced players 😍
It has lots of tools but as a tuner app I love that it gives you the tone first so u know what it should sound like as well as green bars that go up and ring when each string is correctly tuned 🎸 it also says what standard tuning is and lets u hit the E string hear the tone then try to match it showing guidelines as to which way to turn then a little touchdown for each correctly tuned string then let's u strum and it says standard tuning 😊
Also has a metronome and other helpful tools and some great games to help you train your ears to hear it all in all great app with links to play along apps that teach you to play 3 songs included in this app and it will say a little early or late etc on the chords or strum so be sure to explore all the aspects of this great app 😊 it's a Great tuner to have on ur phone but also soooo much more if you take the time to explore the other aspects
Like it shows you ALL the chords and where your fingers go on each string and fret so if u want to know how to play a C it shows you but if u move the bottom line it shows u all the variations on a C chord and how they r play Fantastic App❤️❤️❤️❤️❤️🎸🎸🎸🎸🎸

New update lags behind

I've used this app for several months now, and it's been great so far. Great as a chord reference guide, great for its primary tuning capabilities. No complaints prior to the most recent update.

However, as of this update made available several days ago, I have noticed that the swiping mechanism within the app seems delayed. It doesn't feel as responsive as it was before, and there is a lag once you swipe until the panel stops moving. This is a nuisance, requiring multiple attempts to do something that once required one smooth swipe across the screen.

Moreover, the chord diagrams seem significantly smaller (although with higher resolutions) than before, making them less impactful than before.

It would be great if these issues could be resolved, as I love using this app and will continue to use this app in spite of the minor inconveniences sourced from this update. Also, it would be cool if guitar scales were also available within the app, I would find it super helpful in my quest towards guitar proficiency.

Thanks for reading, and I hope to see these changes made soon!

Good for all strings but E

I use this weekly to tune my Ibanez GRX20, and sometimes my acoustic if I need it. In order for the music I'm playing so sound good, my guitar must be in tune perfectly.
This app has done that, but left my E string out of tune and sounding horrible. The app itself just gives up on trying to tell how sharp or flat the E is, and frequently the pitch of the note would be seen wobbling tremendously on the tune diagram.
Sometimes when I first play I get a "-4335" being flat, then it just randomly thins out to near in tune. Then it strikes up to "+335" being sharp. The accuracy for the E string is crap.
As for the other notes, when I tune them the diagram centers them, and I get a green "+0" indicator in the middle of the in tune line. Absolutely perfect. That's for all the other notes except E.
For E, if I get it somewhat in tune, the indicator with the + and - number dances between numbers below ten, both sharp and flat.
The app itself can't perfectly tune my E, but it just aggravates me that a world renowned app known for guitar tuning can't properly tune one note.
I guess the app is just really sensitive to the E string.

GuitarTuna – Tuner for Guitar, Bass and Ukulele
View in iTunes
This app is designed for both iPhone and iPad
  • Free
  • Category: Music
  • Updated:
  • Version: 4.0.5
  • Size: 107 MB
  • Languages: English, French, German, Italian, Japanese, Korean, Portuguese, Russian, Simplified Chinese, Spanish, Traditional Chinese
  • Seller:

Compatibility: Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

Current Version:
All Versions:

Top In-App Purchases

  1. GuitarTuna Pro$12.99
  2. All In One$9.99
  3. Ukulele & Cavaquinho$3.99
  4. Power Bundle$3.99
  5. All Chords$6.99
  6. Open Bundle$3.99
  7. Bass 4 and 5-string$3.99
  8. Folk Guitars$3.99
  9. 7 & 12 String guitars$3.99
  10. Violin family$3.99