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AccuTune - Guitar Tuner

By Positive Grid Inc

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- AccuTune is a super-accurate (±1 cent) chromatic tuner.
- More than 1 million users of AccuTune.
- Featured worldwide by Macworld, Guitar World, Guitar Player, Premier Guitar, Guitarist.

AccuTune responds either to notes captured by the iPhone or iPad’s microphone, or through a guitar adapter like Positive Grid’s JamUp Plug.

It provides two different views: the top of the screen is a standard meter display and the bottom a note-wheel. Both offer a great level of detail, making precise tuning easy.

Pressing the Setup button brings you to the Settings screen, where you can change the calibration from the default 440 Hz, set transposition, adjust temperament, and more. Most importantly, the AccuTune features a smooth response, making tuning easy.

Developed by Positive Grid, the leading developer of music software tools. We focus on things that are solid for working musicians, with simple interface and cutting edge algorithm.


- Accuracy range: ±0.01 semitone ( ±1 cent)
- Fast responsive ±25 cent range for fine tuning
- Easy-to-use note wheel display
- Configurable needle damping factor
- Selectable temperaments
- Support for transposing instruments
- Adjustable A4 calibration in 0.1 Hz resolution

More Information:

What's New in Version 2.1

- New and improved algorithm
- Retina display support
- Bug fixes


iPhone Screenshot 1
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iPad Screenshot 1
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Customer Reviews

Very decent tunner

Very decent tuner app. I love the GUI. Fills the screen nicely and has a nice damping option. As far as I can tell it ONLY displays in landscape mode, which for me is perfect as I have a hard shell case with a bluetooth keyboard so my iPad is ALWAYS in landscape mode. However, I do feel that developers are irresponsible if they don't provide both landscape and portrait views for their products and for that reason I can't give it 5 stars. Also, I have been able to make it freeze in the "settings" pane sometimes, which requires an app shutdown to clear itself .... so .... down to 3 stars it goes.

Great tuner

Wonderful tuner, very easy to use, all one would ever need.

Great app, please update for iPhone 5 and/or iOS 7

Great app, but it needs to be updated for newer devices running newer software. For a paid app I'm a little disappointed.

AccuTune - Guitar Tuner
View in iTunes
This app is designed for both iPhone and iPad
  • $3.99
  • Category: Music
  • Updated:
  • Version: 2.1
  • Size: 3.5 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 5.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

Current Version:
All Versions: