# UltimateScale — Music scale learning assistant

> Music scale learning assistant (iPhone/iPad app by Bum Tae Yoon.)

- Source: https://appshunter.io/ios/app/ultimatescale/id1631310626 (this page in markdown: same URL + `.md`)
- Developer: [Bum Tae Yoon](https://appshunter.io/developer/1578285460)
- Category: Music, Music, Education
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 14.0 · 60 MB
- Languages: English, Japanese, Korean
- Released: 2022-06-25
- Data updated: 2026-06-07
- User reviews in markdown: https://appshunter.io/ios/app/ultimatescale/id1631310626/reviews.md

## What is UltimateScale?

UtimateScale is a music scale learning assistant. 

Are you confused and tired of difficult terms and complex scale structures such as Mixolydian and Locrian? With UltimateScale, you can learn by looking at a composition in staff score, directly touching a synth keyboard key on the app, listening by ear, and moving freely in key. In addition, you can learn the scale efficiently through a quiz using the Leitner System, which is famous for learning by memorization. In addition, you can upload and share comments of various scales and your own learning know-how through the Internet Archive.

- Learn the scale by looking at the sheet music and listening to the sound.
- The built-in touch synth keyboard allows you to learn while directly pressing the keys.
- This app does not support only C key. You can transpose from C to B and see how it performs in different situations.
- You can adjust the speed and octave during playback, and you can set the playback instrument as you like.
- In the quiz menu, learn various scales by solving problems and using flashcards.
- For quiz questions, effective learning is possible using the famous Leitner system as a memorization method.
- You can share and download new scales that have not yet been discovered through the Internet Archive, scales with comments containing your own learning know-how, etc.

This app is also

- Support dark mode.
- Compatible with both iPad and iPhone devices.
- Press scales using a hardware MIDI keyboard connected via Bluetooth or USB.  
    - MIDI keyboard is also supported in quiz mode.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 1: Remove all ads | $9.99 | one-time |



## Version history (last 5 releases)

### 1.6.0 — 2025-05-15

* Pro in-app purchase update: In addition to ad removal, new features such as Advanced Scale Search, Slide Piano, and Multi-touch Piano have been added.
* Added additional comment feature to Archive: When uploading a scale, you can now write an extra comment to be shown publicly online, in addition to the internal comment.
* Added comment discussion feature to Archive: Users can now share impressions, questions, discussions, and additional learning about a scale via comments.
* Localization fixes, bug fixes, and app performance improvements have been implemented.

### 1.5.0 — 2024-03-06

- Introduced in-app purchases. By purchasing this product you will permanently remove all ads from the app.
- Many convenience features have been added to make it more convenient to use on Apple Silicon mac.
- You can play the piano keys using the hardware keyboard, and use shortcut keys to execute various features.
- Improved stability regarding connecting external MIDI controllers.
- Other bug fixes and stability have been improved.

### 1.4.0 — 2023-09-11

You can connect a hardware MIDI keyboard via Bluetooth or USB. 
 - Available on scale list page or quiz mode page.

### 1.3.1 — 2022-12-06

Additional features
- Scale comparison: You can compare and analyze up to 8 scales on one screen by clicking the tab bar.
- Play all notes of the scale simultaneously: Press and hold the (▶) button on the scale detail view screen to play all notes of the scale simultaneously.
- CSV export: Scale information stored in the current device can be exported and shared as a CSV file.
- App Appearance Settings: In addition to your device's settings theme, you can always keep it in light mode or dark mode.

Others
- Minor design changes and bug fixes

### 1.02.1 — 2022-07-21

- Fixed some bugs.

## Apps similar to UltimateScale

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Pumi – Chord Progression Keys](https://appshunter.io/ios/app/pumi-chord-progression-keys/id1626930963) | — | Free | Music |
| [SaxyScore](https://appshunter.io/ios/app/saxyscore/id6526497102) | — | Free | Music |
| [BB Accordions](https://appshunter.io/ios/app/bb-accordions/id6456844669) | — | Free | Music |
| [Chord Table](https://appshunter.io/ios/app/chord-table/id6476453241) | — | Free | Music |
| [Scale Guide](https://appshunter.io/ios/app/scale-guide/id6478505307) | — | Free | Music |
| [Music By Numbers](https://appshunter.io/ios/app/music-by-numbers/id1623018554) | 5.0 (6) | Free | Music |

## More apps by Bum Tae Yoon

- [DiffuserStick](https://appshunter.io/ios/app/diffuserstick/id1578285458)
- [Tuner XR](https://appshunter.io/ios/app/tuner-xr/id1581803256)
- [Make My MusicBox](https://appshunter.io/ios/app/make-my-musicbox/id1596583920)
- [Music Interval Quiz Master](https://appshunter.io/ios/app/music-interval-quiz-master/id6738980588)
- [Bigi Image Translator](https://appshunter.io/ios/app/bigi-image-translator/id6759966238)

All apps by Bum Tae Yoon: https://appshunter.io/developer/1578285460

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-07.*