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App Store Apps > Music > WorldScales
WorldScales icon

WorldScales

1.1.5
Kelfar Technologies
4.65
23 reviews
$19.99

WorldScales Screenshot 1 of 5
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Screenshots by Kelfar Technologies, from the the App Store listing
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AppBrain's verdict

Established
Rating on App Store
4.65
23 ratings
Last updated
October 21, 2026
Size
192.2 MB

It doesn't have enough ratings yet to judge what users think.

Official page on the App Store

User feedback

Ratings and reviews on the App Store

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Store listing

By Kelfar Technologies, from the App Store
Description by Kelfar Technologies Written by the developer, not by AppBrain. Click to read.
WorldScales

Discover a world beyond standard tuning.

Not all scales are created equal. WorldScales lets you explore the rich diversity of musical tuning systems from around the globe, freeing you from the limitations of modern equal temperament.

Most modern instruments are tuned using the equal-tempered system, which divides the octave into twelve equally spaced notes. While this tuning has dominated Western music for centuries, many cultures and historical traditions use alternative systems that create unique colors, moods, and expressions. From Byzantine chant and Middle Eastern maqamat to ancient European tunings and custom microtonal scales, WorldScales opens the door to a broader musical universe.

Whether you're a musician, composer, educator, researcher, church musician, or simply curious about alternative tuning systems, WorldScales gives you the tools to experiment, learn, and create.

Features

• Tune every note of the octave individually with precision up to ±100 cents.
• Over 35 high-quality sampled instruments, including piano, violin, organ, oud, kanun, choir voices, and more.
• MIDI input support. Connect an external MIDI keyboard and perform microtonal music using custom tunings.
• Extensive collection of Western, Byzantine, Oriental, and world music scale presets.
• Diatonic Mode: Play using only the white keys while automatically disabling the black keys, making it easier to perform scales without accidental chromatic notes. Perfect for educational use, Byzantine music, traditional melodies, and musicians who prefer a simplified playing experience.
• Create, save, and recall your own custom scales and tuning systems.
• Enter tunings using cents, frequency ratios, or exact frequencies.
• Visual keyboard display showing scale notes and root positions.
• Instantly transpose scales by changing the root note while preserving all interval relationships.
• Built-in audio effects including reverb and compression.
• Polyphonic instruments with multiple velocity layers for enhanced realism.
• Designed for musicians, composers, educators, and students interested in microtonal music and world musical traditions.

Explore New Musical Possibilities

WorldScales combines powerful tuning tools with a diverse collection of instruments, making sophisticated microtonal performance accessible to everyone. Whether you want to explore ancient traditions, recreate historical tunings, discover world music scales, experiment with microtonality, or simply play in Diatonic Mode using only the white keys, WorldScales provides an intuitive and flexible environment for learning, performing, and creating music.

Expand your musical horizons. Tune beyond the ordinary.

Safety and technology

Found in the app by AppBrain
Price
$19.99
App size
192.2 MB
Content rating
Everyone

Technologies used by WorldScales

Releases

Updates seen on the App Store
Version
1.1.5
Launched
February 2012

No changelog data

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Rankings

App Store top charts

App Store Rankings for WorldScales

This app is not ranked

About the app and developer

About WorldScales

WorldScales is a music app developed by Kelfar Technologies.

User Ratings

WorldScales is rated 4.65 out of 5 stars. The rating is based on 23 ratings.

App Information

WorldScales costs $19.99. The app size is 192.17 MB. The latest version available is 1.1.5. The last update was on October 21, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on the App Store since February 2012.

WorldScales is made and published by Kelfar Technologies. AppBrain is an independent app data site and isn't affiliated with Kelfar Technologies. The app name, icon, screenshots and description belong to Kelfar Technologies and are shown as published on the App Store.

Developer information for Kelfar Technologies

Kelfar Technologies

Address:

Frequently asked questions about WorldScales

Is WorldScales free?

No. WorldScales costs $19.99 on the App Store.

Is WorldScales still available?

Yes. WorldScales is on the App Store, and the last update we saw was on October 21, 2026.

How large is WorldScales?

WorldScales is 192.17 MB.

Is WorldScales suitable for children?

App Store rates the content of WorldScales as suitable for everyone.

How do people rate WorldScales?

WorldScales scores 4.65 out of 5 stars, from 23 ratings on the App Store.

Who made WorldScales?

WorldScales was developed by Kelfar Technologies. It is listed in the music category on the App Store.

What are the best alternatives to WorldScales?

People looking at WorldScales also look at these music apps: Psaltikon Tonarion, Byzantine Ison, Psaltikon Tonarion N, Eikona, Oriental Strings.

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Overview Alternatives Reviews Rankings Technology
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