Guitar Tuner - Simply Tune 4+

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World's #1 best-reviewed guitar tuner app!
100% free premium tuner with chords & songs
With lots of different instruments to choose from, you can be tuning your guitar, bass or ukulele with fun and ease, so that it plays at perfect pitch. It's as easy as that.

Tuning just got easier with the new lightweight guitar tuner app by JoyTunes - Simply Tune. Get it now!
From the creators of Simply Guitar.

Learn how to adjust your strings safely and accurately.

Simply Tune tuner guides you through the tuning process step by step with easy-to-understand visuals, showing you in which order you need to pluck your strings & indicating if the string is tuned right, too high or too low.

The automatic tuner automatically detects the closest string to the played pitch & the manual tuner tells you how close you are to the string you choose.

Learn & practice the chords of your favorite songs on the go.

--- How Simply Tune works ---

• Place your device in front of you
• Follow the tuning instructions
• Get instant tuning feedback with clear guidance on how to proceed

--- We would love to hear from you ---

Tell us about your experience with Simply Tune. We would love to hear your feedback and suggestions on how we can make your tuning experience even better. Let us know at

--- Good to know ---

Simply Tune is created by JoyTunes, developers of award-winning apps Simply Piano and Simply Guitar. JoyTunes are experts in creating educational and fun music apps for learning to play quickly and easily. Recommended and used by tens of thousands of music teachers worldwide with over 1 million songs learned every week.

Awards & Recognition:
“Editors' Choice” by Apple
SF Music Tech Summit Startup Innovators Challenge Winner
Best Tool for Beginners, NAMM
EMI Innovation Challenge Award

--- Contact ---

Have questions, feedback or suggestions? Reach out to us at

Privacy policy:
Terms of use:

What’s New

Version 3.7.0

We tuned the app, fixed some bugs, and it should be working well now.

Let us know at if you feel something isn't tuned right.

Ratings and Reviews

4.8 out of 5
48.4K Ratings

48.4K Ratings

Oskar473 ,

Better than others

I was a fan of Guitar Toolkit, before it was abandoned by the developer and stopped functioning. That app cost $10, which I still consider a worthy investment considering the length of time I used the app. I downloaded GuitarTuna, and deleted it immediately when I opened it for the first time as saw it had a monthly subscription signup required to use it at all. Not cool. I would have paid a one-time fee, but a subscription doesn’t make sense for a tool that should operate standalone on my phone.

This app works, and it appears to actually be free. Don’t listen to the reviewers who claim they broke a string trying to tune with this app. Definitely a user malfunction, if not trolling. As far as the aesthetics of the app, I would prefer an analog-style needle to the horizontal line guide, but it doesn’t change the function. The green box indicating “in-tune” is a bit loose, but the center line is on pitch. I recommend this app because it works as advertised within the limits of the iPhone microphone, and it’s actually free with no subscription paywall bullish¡t.

Developer Response ,

Thanks for the kind words!
You also get all the alternate tuning there is (we're adding more constantly, let us know if you need more) and you can use the chromatic tuner which won't have the green box as you can tune to any pitch that you want.

Let us know if anything goes particularly bad or particularly good :D at

Have fun with your tuned guitar!

😎😚✌️ ,

It is so good

I got the app last year and I have been using it ever since. I honestly don’t have any problems with the app. The app listens to it so nicely, and I even got my guitar teacher to check if it was tuned and IT WAS!!! I love it so much, if you are deciding to download the app do so.

Tbh I had my doubts and thought that it wasn’t listening or just didn’t tune it right, but I was shocked that the app was made so nicely. Thank you Simply Tuner for making Tuning much easier. 🙏

I have no need to try to learn the cords because I have classes but if you do there are tons of other Reviews to read from. Hopefully you find what you are looking for..

Developer Response ,

Thanks for the review! Even if you have guitar classes, we'd like to provide you the best experience in your musical journey. Let us know if there is anything you need to be in the app at

hohihoihhiih ,


I hate to leave negative reviews and this app is not the worst, it proves quite well when using to tune a guitar and I use this app to tune it. However, if you own a bass I heavily suggest not to use this app for it. Not only is it super difficult for the tuner to even pick up a sound (I’ve tried it at max volume), whenever it does it will bounce around saying that it’s 2000 or even 3000 Hz too high or too low. When it says the strings are in tune there’s a 50/50 percent chance that reading is actually accurate.

P.S. I’ve dialed my bass and my amplifier knobs every which way just to get the same result every time.

Developer Response ,

Thanks for the feedback. We are working on improving bass recognition as lower frequencies are more difficult the detect and it depends a lot on the type of device (iphone/ipad) and the bass amp and its EQ settings. Please let us know at which device you've used (iphone/ipad and which model), which bass guitar you have and which amp you used. We will set this up as close as possible to what you did so we can reproduce what you experience and fix what is needed.

We appreciate this kind of feedback since it is detailed and help us improve and provide a better tuning experience. If there more details you can share, please do at

App Privacy

The developer, JoyTunes, 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 Linked to You

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

  • User Content
  • Identifiers
  • Usage Data
  • Diagnostics
  • Other Data

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

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