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 5.4.0

- 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
3.8K Ratings

3.8K Ratings

Kazzican ,

Fresh tuna

I've used every imaginable kind of guitar tuner over the years, from a $2 tuning fork to one that's built-in to a $3000 multiple effects rack, and this is my favourite. I've only used the basic function - tuning to E - but for that it's perfect! It's sensitive without picking up background noises that'll throw it off, it's perfectly accurate without skipping around and being overly touchy, the interface is great, really easy to read - it'd be GREAT for beginners. I only bought this coz the batteries were flat in my other tuners but I'm gonna keep on using it now whenever I can. I have it installed on an iPad so it's obviously not ideal for gigs but when I'm home I won't be using my Boss digital tuner anymore and that probably cost about 300 bucks more than this one! I don't remember what this cost but it was definitely worth every cent. There are probably plenty of free tuning apps but a good, accurate, easy to use, frustration-free tuner is well worth investing a few bucks in. You can't go wrong.
"Do yourself a favour!"

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

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.


Yousician Ltd
126.7 MB

Requires iOS 9.0 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 $19.99
  2. All In One $14.99
  3. Ukulele & Cavaquinho $6.99


  • Family Sharing

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

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