Introducing Guitar Tuner, from the maker of the popular music app tomChord!

What the users are saying:
"This is the only chromatic tuner that I tried on here that actually works." - dharris (USA)

"Great app, love the noise cancellation thingy and it's probably the most accurate tuner on the app store" - Joshua Joe (New Zealand)

"Awesome! - One of the best tuners on the app store! I'm impressed" - Ybxbmhnjgl (Canada)

Guitar Tuner is a chromatic tuner which uses the iPhone/iPod microphone to give you an accurate pitch reading.

- works with any instrument!
- chromatic: works with any note!
- accurate to 0.33 Hz
- slider control to filter background noise
- fine tuning display with +/- 50 cent range and 2 cent increments
- wide range display shows +/- 2.5 semitones with 10 cent increments
- extremely fast 0.1 second refresh rate

What’s New

Version 3.0.3

Support for new devices: iPhone XS, XR and iPad Pro

Ratings and Reviews

4.5 out of 5
61 Ratings

61 Ratings

What's All This, Then? ,

Nice job

Accurate, sensitive and long hold time. Reads acoustics really we'll and sensitive enough to pick up an unamplified electric. Recommend for sure. Thanks!

Biscomando ,


I'm a professional musician, and thought this app would help me out if I forgot my real tuner. It was utterly useless while I was sitting in a perfectly quiet room. The note detector kept dancing all over different notes, and the fine resolution bar jumped back and forth between +/- 20 cents like a mofo. I'm good with technology, and I know my instrument is good quality and should be easy enough to get in tune. This app is garbage.

x Navy ,

It works!

I have tried other tuners on here and this one works great for me, with the background sound filter you can set it up so that only the notes from your guitar are picked up. But if u set it to tight it will bounce around like a drunk sailor! Take a few minutes to set it up properly and it will reward you with a properly tuned guitar if u forgot your regular tuner at home. I would not suggest that you throw away your electronic tuner but it is really handy when you don't have it with you.


Last Harmonic LLC
34.2 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad and iPod touch.



Age Rating
In-App Purchases
  1. Remove Ads $3.99


  • Family Sharing

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

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