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 3.0.7

Fixed a bug that paused the needle temporarily while a video ad starts playing.

Ratings and Reviews

4.6 out of 5
316 Ratings

316 Ratings

DaltonSwede ,

Great tuner

I love the simple interface and its very accurate. Plus its free so you cant go wrong!

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.

App Privacy

The developer, Last Harmonic LLC, 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:

  • Identifiers
  • Usage Data

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Identifiers
  • Usage Data
  • Diagnostics

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.

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