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.
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Ratings and reviews on the App StoreComments on WorldScales for iOS
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Store listing
By Kelfar Technologies, from the App StoreDescription by Kelfar Technologies Written by the developer, not by AppBrain. Click to read.
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
Alternatives
Similar apps and more from Kelfar TechnologiesAlternatives to WorldScales
Rankings
App Store top chartsApp Store Rankings for WorldScales
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
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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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