The #1 tuner in the world!
This is not just a guitar tuner: we’ve got +100 tunings for 15 instruments! It’s fast, accurate and easy to use. GuitarTuna has been downloaded over 80 million times, which makes it the most downloaded tuning app in the world.

Tuna has it all:
• A LOT of tunings: standard, drop D, drop A, half step down and loads more
• Metronome with tap-for-tempo and multiple time signatures
• Chromatic tuner for alternative tunings and for tuning any instrument
• The clean, intuitive and customisable UI makes it easy for anyone to use
• Tools: Ear training, chord guide, games, and exercises.

How it works:
Just pluck a string on your instrument - Tuna detects the sound using your device’s microphone. You’ll get instant visual feedback while tuning. No cables needed.
With our award-winning audio recognition technology, we guarantee you an insanely accurate tuning result. We use noise cancellation technology to eliminate background noises while you tune.

The instruments we currently support:
• Guitar
• Guitar 7-String
• Guitar 12-String
• Ukulele
• Cavaquinho
• Bass
• Bass 5-string
• Violin
• Viola
• Cello
• Fiddle
• Mandolin
• Balalaika
• Banjo
• Banjo 5-String
• Chromatic tuner for all instruments

We’ve put a lot of love and effort into making GuitarTuna the tuner it is today. User feedback is valuable to us, and you can be sure we’re listening. We recently added chromatic tuner to the app because of the sheer amount of requests for it. With the chromatic tuner, users can create their own tunings or tune basically any instrument (you can even identify your landline’s beeping frequency).

GuitarTuna Pro subscription: Subscribe for unlimited access. Subscriptions are monthly. Prices may vary in different countries. Payment will be charged to iTunes Account. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user’s iTunes Account Settings. Any unused portion of a free trial period will be forfeited when the user purchases a subscription.

GuitarTuna is developed by Yousician. Check out the app to learn and master guitar, ukulele, bass, piano or singing!

It’s pretty cool you actually read this far! Here’s a joke for you: What’s the difference between a bass and a tuna? You can tuna bass, but you can’t bass a tuna.
Now download the app and see how it is.
Send us your feedback of the joke and the app to!

What’s New

Version 5.3.0

- Minor fixes
If you experience any issues with GuitarTuna, please send an email to and we'll get back to you as soon as possible!

Ratings and Reviews

4.8 out of 5
5.2K Ratings

5.2K Ratings

Poppy Gifford ☺️ ,

Great app!

I don’t usually do reviews, but I really gotta say this app if defo one of the best tuning apps ever! Being a beginner at the ukulele I had no clue on how to tune etc etc, and this really really helped. Not to mention the extra app you can download that got my head around on how to strum and stuff (The app is called Yousician) although having to pay for extra lessons it’s still a great app if you need somewhere to start off with! Sadly there is a small barrier where you’d have to pay for some tuning options but overall it’s an amazing app.

Callum G. ,

Great but...

This is a great app with loads of great features but it saddens me to see that some tuning configurations are locked behind a paywall. This is a brilliant app so long as you only need standard tuning, I’d be willing to pay for more tunings if it weren’t for the fact that they a bundled with certain tunings and cannot be purchased separately. For example if you wanted drop D and open A you’d have to buy two separate bundles for just two tunes. I feel like I'm criticising too much so I’d like to say that the tuning system is spectacular and the mini-games are a great addition, it’s just a shame different tunings can’t be bought separately.

(*--*) ,

Good idea, bad execution

The idea of this app is great, certainly something handy for guitarists of all degrees. However, I suspect that due to limitations is smart phone microphone technology, it consistently renders inaccurate results. Momentarily, one’s guitar does in fact sound “in tune” after using the app. Yet, shortly after, it’s clear that this is entirely not the case. This simply wastes time for the user. To be frank, physical tuning devices are far more proficient for this purpose.

I have tried this app on a range of phone modals and in each case it has failed to uphold its claim to be “the #1 tuner in the world.”

The interface and design is... okay; it could have more work put into it in order to yield an overall better user experience.

Developer Response ,


This definitely shouldn't be happening. Please send us a message via and we will look into the issue with note recognition. Thank you!


Yousician Ltd
127.3 MB

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


English, French, German, Italian, Japanese, Korean, Portuguese, Russian, Simplified Chinese, Spanish, Traditional Chinese

Age Rating
Rated 4+
© Yousician Ltd
In-App Purchases
  1. GuitarTuna Pro £12.99
  2. All In One £9.99
  3. Ukulele & Cavaquinho £3.99


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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