ScaleGen

ScaleGen

Musical scale editor

12 ratings
17 reviews
$3.99

Details

  • Released
  • Updated
  • September 23, 2014
  • December 17, 2025
ScaleGen video #1 for iPad
ScaleGen screenshot #2 for iPad
ScaleGen screenshot #3 for iPad
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ScaleGen screenshot #5 for iPad
ScaleGen screenshot #6 for iPad
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About

Generate and edit musical scales with intricate detail. Explore traditional and experimental tunings, audition your creations, and export them as MIDI files or to other applications. Ideal for composers and students seeking to expand their musical horizons.

Generate and manipulate musical scales
Detailed scale definition and editing
Audition scales within the app
Export as MIDI or to Gestrument
Predefined scales from various traditions
Explore microtonal and experimental tunings
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What's New in ScaleGen

1.2.2

December 17, 2025

New build

User reviews

indispensable avec gestrument

un fois maitrisé, quel bonheur d'importer ses propres patterns midi et de les faire sonner en impro dans gestrument !!! Qui aurai pu imaginer piloter autant d'instruments du bout des doigts. merci pour ces pepites !!!

Configuring pitch bend is an essential but missing feature

Overall this is a great app, but I am not sure if it is dead. At least the email address in the built in user guide is. So I post it here: Gestrument allows the pitch bend range for outgoing MIDI to be configured. ScaleGen is missing this feature. Please add it as this is essential for matching the app to some hardware synthesisers.
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Possibilities realized! Except for one..

I have been using ScaleGen since it was first released, mostly to generate microtonal scales for the few iOS synths that support “alternate” tuning. Now that more music app developers are realizing that 12 equally-spaced notes leaves out a vast universe of possible scales, this app comes in very handy when I need to generate a .scl file but cannot or don’t feel like firing up a whole other computer.

The one thing missing from ScaleGen is the ability to generate .tun files as well. Those still have to be edited by hand, which is a pain. But it gets five stars because it has been around for so long and helped to put just intonation and other tunings onto the iOS radar. Add .tun files and I will imagine ten stars for you.
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Amazing

As a INDIAN classical music practitioner, this is a boon. It is simple and elegant in the way it hides the complexity and provides a unique tool to build my own raagas. You can export to Gestrument.

Only lament is that I don’t know how to export to Gestrument Pro. Written to Mr Nordin.

Export ?

Une application bien faite et très intéressante, mais effectivement l’export vers Gestrument n’est pas possible...
C’est un peu dommage, d’autant que ScaleGen le propose avant de le refuser :(

Developer apps

FAQ

What is ScaleGen?

ScaleGen is a powerful tool for generating and editing musical scales. It allows users to define scales with intricate detail, explore traditional and experimental tunings, and audition their creations directly within the app.

What kind of scales can I create with ScaleGen?

You can create a wide variety of scales, including traditional Western scales, early music scales, Asian scales, and conceptual scales based on contemporary music. It supports microtonal intonation and scales with up to 24 pitches per octave.

Can I export my scales from ScaleGen?

Yes, you can export your created scales as MIDI files, text files, Scala files, or directly to the Gestrument app. This allows for further use in other music software or applications.

Who is ScaleGen designed for?

ScaleGen is ideal for experimental composers, musicians looking to explore new sonic territories, and serious music students who want to deepen their understanding of pitch organization.

Does ScaleGen have ads?

No, ScaleGen does not contain advertisements. It is a paid application that offers an uninterrupted creative experience.

What devices is ScaleGen available on?

ScaleGen is currently available for iPad. Future platform support may be announced by the developer.

How often is ScaleGen updated?

The latest version of ScaleGen is 1.2.2, last updated on December 17, 2025. Updates typically bring new features, bug fixes, and performance improvements.

What is the price of ScaleGen?

ScaleGen is available for a one-time purchase of $3.99. This price grants you full access to all its features without any recurring subscription fees.