ChordCalculus is a tool for players of fretted instruments. ChordCalculus will allow the user to choose from a large number of pre-defined fretted instruments in a variety of tunings. Additionally, the user can define new instruments and/or tunings. Single or multiple capos can be added. The user then picks from one of four operating modes using the segmented selectors at the center top of the display:

* (C)hord Calculator:

Show all fingerings for chords for a given instrument/tuning, filters, capos, and fret span.

* Chord (I)dentifer:

For a given instrument/tuning and fingering, display all possible names for a chord

* (S)cale Display:

For an instrument/tuning, key and scale type, display the scale, and play a two-octave scale

* (P)rogression Player:

Derived from chord mode, display fingerings for a chord progression. Also plays chords in sequence.

In all cases, the chords can be played as a chord or arpeggio and the scale played back.

See for all the features

What’s New

Version 1.52

Syncing configurations between multiple devices using iCloud is now enabled. In the Settings panel, a tap on the cloud icon will automatically upload or download the most recent the settings or configurations to your device. A long touch on the cloud icon allows you to force an upload or download. You can also you you to disable this feature. If disabled, long touch allows you to reenable as long as you are logged into iCloud. All information sharing is to your personnel iCloud account.
Other minor bug fixes.


Steven Pollack
68.4 MB

Requires iOS 12.0 or later. Compatible with iPhone, iPad and iPod touch.



Age Rating
Rated 4+
© 2017 Steven Pollack
3,49 €


  • Family Sharing

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

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