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 6.16.0

- 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
5.8K Ratings

5.8K Ratings

Savvy567784 ,

Really good app!

Hello, I play violin and I’m 12 years old. I’ve been playing for about 5 years and I found this app about 2 years ago. It’s really helpful as I don’t know how to tune with other apps because they have all the G5 and A3 stuff and I don’t understand what any of that means. GuitarTuna is really simple because they show you how off you are in whole numbers instead which makes tuning so much easier. In the time I have used this app I have found nearly no bugs or experienced any glitches.

Thank you<3

Dave Whitla ,

Looks pretty, but ...

I needed a tuner to set the intonation on one of my guitars and my physical unit was in for repair. Installed Guitar Tuna and soon found that I had to pay to. E able to choose arbitrary tunings. It wasn't clear what paying would give me, but it was certain that not paying didn't provide what I needed. So I paid full price for the "Pro" version. Step one sorted, I hit the first harmonic at fret 12 and ... FAIL - the app does not detect harmonics (or even octaves of a very limited range of fundamental notes). So I tried "custom" tuning ... FAIL - can't choose frequencies beyond the 3 octaves baked into the app. So now I'm down $20 and have another space waster on my iPhone. If your a serious guitarist looking for a software alternative to a physical chromatic tuner give this a miss.

ilausdgf ,

Versatile, accurate , and simple

I use this every time I play (as every musician should tune before practice) and it’s so quick and easy. As accurate as any other tuner I’ve used and essentially free. I regularly tune anything bass, violin, mandolin, steel string, and ukulele, and this app is easy to change between different instruments. Also has heaps of instruments to choose from, not just guitar.
The in tune “bing” annoyed me at first because it’s a different note than you’re tuning...but you can turn that off very easily. 5/5

App Privacy

The developer, Yousician Ltd, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer's privacy policy.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Purchases
  • Identifiers
  • Usage Data

Data Linked to You

The following data may be collected and linked to your identity:

  • Purchases
  • Location
  • Identifiers
  • Usage Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

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

More By This Developer

You Might Also Like