WorldScales

WorldScales

by Kelfar Technologies

21 ratings
44 reviews
$19.99

Price history


Details

  • Released
  • Updated
  • February 29, 2012
  • August 27, 2025

Features

WorldScales screenshot #1 for iPhone
WorldScales screenshot #2 for iPhone
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WorldScales screenshot #5 for iPhone
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About

Explore musical scales beyond equal temperament. Tune individual keys, experiment with diverse presets, and create your own tunings. Connect MIDI keyboards for a fully customizable microtonal music experience.

Individual key tuning (+- 100 cents)
35+ high-quality sampled instruments
MIDI In for external keyboard control
Preset scales (Western, Byzantine, Oriental)
Save custom scales and tunings
Frequency ratio, frequency, or cents input
Audio effects (reverb, compressor)
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What's New in WorldScales

1.1.2

August 27, 2025

This update introduces support for Hold/Sustain functionality when using external MIDI controllers in mono mode, ensuring consistent behavior with internal playback.

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User reviews

Great, but I’d like more GarageBand support.

This is absolutely the best app for this kind of thing with a vast array of scales and instruments, not to mention its customizability. But the only reason I don’t leave a full five stars is because you can’t use it as an Audio Unit Extension in GarageBand, only uneditable Inner-App Audio which is really Frustrating. I really hope they'll add this kind of compatibility in a future update.
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Amazing app it’s very helpful

I like it

Excellent App - Best in it’s Class

This app is packed with features and is loaded with many helpful options and amazing settings. I am very pleased with this and it has come in handy for my purposes ever since I downloaded it.
Many thanks to Kelfar Technologies for all of the hard work, diligence, and expertise that goes into creating such a useful tool.
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The best app of its kind

Kelfar Technologies has raised the bar to the highest level with this app. As a Master-Chanter (“Protopsaltis”) of Byzantine Music and instructor of the psaltic art, this tool has become invaluable to me in various aspects of my field. First and foremost, it is an excellent aid in teaching the various scales and modes of Eastern Orthodox hymnology. The app is able to faithfully replicate the intricate microtonal intervals of the Byzantine scales, allowing the student to hear how tetrachords are “built” within the octal diatonic, chromatic, and enharmonic scales. In this respect, as a teaching tool, it is second to none. Second, this app produces a true accompaniment of the ison drone that is characteristic of Byzantine chant. Developed and digitized with recordings of human voices, World Scales faithfully produces a more authentic audio result than other similar tools available. I stress that HUMAN VOICES were used as the basis of making the sound output, and not by some other artificial “electronic” means. When properly transmitted through a high-quality speaker, the audio output of this app is the closest sound to a group of human “drone-holders” (i.e. “isokrates”) that one will hear in an actual Byzantine Choir. And third, although I am very hesitant yet selectively cautious in using this app in an actual church setting (the tradition of Orthodox hymnology allows only ONE instrument to be used in worship, and that instrument is the human voice), I do support its use in audio recordings and concert settings to help actual assistants and choir members in faithfully rendering the ison notes, which are the “decoration” to the melodic executions of the hymns. I applaud Kelfar Technologies in the development of this tool, and in its constant efforts to modify, improve, and further develop this app to make it the best of its kind. Thank you, Karim! Much continued success!
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The best in its class

This app is the bomb! Thank you for your recent update too, Karim!

FAQ

What is WorldScales?

WorldScales is a music application that allows you to break free from standard equal-tempered scales. It provides the freedom to tune the built-in keyboard in any way you desire, offering a vast range of sonic possibilities beyond traditional tuning systems.

What are the key features of WorldScales?

Key features include the ability to tune each key individually by up to 100 cents, over 35 high-quality sampled instruments, MIDI input for external keyboards, numerous presets of historical and regional scales, and the option to save your own custom tunings. It also offers audio effects like reverb and compressor.

How much does WorldScales cost?

Based on the provided information, WorldScales is a paid application. There are no mentions of in-app purchases or advertisements, suggesting a one-time purchase model.

Can I use my own MIDI keyboard with WorldScales?

Yes, WorldScales supports MIDI In, allowing you to connect your external MIDI keyboard. This feature is particularly useful for playing microtonal music and tuning individual keys, which is typically only possible on expensive hardware.

What kind of scales can I explore with WorldScales?

You can explore a wide variety of scales, including ancient scales, Byzantine music, oriental vibes, and lesser-known Western scales. The app also allows you to configure and save your own unique scales and tunings, offering immense creative freedom.