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By Oliver Hahn

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Quinterval is a circle of fifths that also shows all tones of the selected scale.

A scale in the circle can be selected by tapping on the tonic or by turning the controller in the middle.

The display at the bottom shows the related major scale with its key signature. The first step and the sixth step with the related minor scale are slightly highlighted.

What's New in Version 1.5

Adjustments for iOS 9


iPhone Screenshot 1
iPhone Screenshot 2
iPad Screenshot 1
iPad Screenshot 2

Customer Reviews


Simple. Easy. This is all I need. Thank you.

It doesn't work

I went to update the app and for the last few days it's just a gray box that says installing but nothing happens. I tried to delete the app but it won't work.


Support for tenor clef would be nice but other than that great app.

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This app is designed for both iPhone and iPad
  • Free
  • Category: Music
  • Updated:
  • Version: 1.5
  • Size: 1.0 MB
  • Languages: English, French, German, Spanish
  • Seller:

Compatibility: Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

We have not received enough ratings to display an average for the current version of this application.
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