# Scale Degree — Music theory drills that stick

> Music theory practice app using spaced repetition for mastery. (iPhone/iPad app by MARK YOSHIO SHIN.)

- Source: https://appshunter.io/ios/app/scale-degree/id6794697980 (this page in markdown: same URL + `.md`)
- Developer: [MARK YOSHIO SHIN](https://appshunter.io/developer/6794697982)
- Category: Education, Music
- Price: $1.99
- Rating: 5.00/5 from 2 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 18.0 · 3 MB
- Languages: American English
- Released: 2026-08-18
- Data updated: 2026-10-18
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/scale-degree/id6794697980/reviews.md

## What is Scale Degree?

Know your keys cold.

Scale Degree turns music theory into something you can recall under pressure — not facts you looked up once, but fluency you keep. A few minutes a day, one key at a time.

Practice that adapts
Every question is scheduled by spaced repetition, so you see what you're about to forget and skip what you already know. Difficulty ramps inside a lesson and backs off when you're struggling. Sessions stay short on purpose.

Teaches, then tests
Each topic opens with a plain-language explanation and a worked example. Theory terms inside questions are tappable — blank on "leading tone" mid-question and the definition is one tap away, without losing your place.

Earn your keys
Start in C. Master a key and the next one opens. Choose how far you want to go: a focused core, or the full curriculum across every topic and key.

What's covered
Scale degrees · major and natural minor scales · pentatonics · intervals · key signatures and relative minors · the circle of fifths · diatonic triads · seventh chords · suspended chords · chord formulas · chord progressions · the seven modes

Roman numerals and Nashville numbers throughout.

Built to respect you
No account. No ads. No tracking. Your progress syncs privately through your own iCloud — we can't see it, and there's nothing to sign up for.

## Key features

- Spaced repetition learning
- Adaptive difficulty
- Plain-language explanations
- Tappable theory terms
- Key-based progression
- Covers scales, chords, and modes

## Is Scale Degree safe?

Not enough ratings yet to assess Scale Degree.

## Is Scale Degree legit?

Scale Degree has limited verification signals. The AppsHunter Legitimacy Score for Scale Degree is 58 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/scale-degree/id6794697980/reviews.md

### 5/5 — Outstanding App for Learning

*2026-08-26*

I’ve tried learning this stuff many many years ago and it never stuck with me. But this app is really starting to connect a lot of the dots for me that were missing back when I tried to learn. I’m really excited with my progress so far and think I will actually understand it all this time.

### 5/5 — Great for learning the notes, not just the shapes!

*2026-08-24*

It was really nice to find an app that doesn't assume you read music or focus on a specific instrument.  I play guitar and I wanted to find an app that took me away from my fretboard to really learn the notes in the scales and this has been great!  The spaced repetition helps me continue to learn and reinforce the lessons I had yesterday.

## Frequently asked questions about Scale Degree

### What music theory topics does Scale Degree cover?

Scale Degree covers a comprehensive range of music theory, including scale degrees, major and natural minor scales, pentatonics, intervals, key signatures, relative minors, the circle of fifths, diatonic triads, seventh chords, suspended chords, chord formulas, chord progressions, and the seven modes. It also utilizes Roman numerals and Nashville numbers.

### How does Scale Degree help users learn music theory effectively?

Scale Degree employs spaced repetition to schedule practice sessions, ensuring users review concepts they are about to forget and skip those they already know. The app also features adaptive difficulty within lessons, adjusting based on user performance.

### Is Scale Degree suitable for beginners in music theory?

Yes, Scale Degree is designed to be accessible. Each topic begins with a clear, plain-language explanation and a worked example. Theory terms within questions are tappable, providing instant definitions without disrupting the learning flow.

### Does Scale Degree have ads or require an account?

No, Scale Degree is ad-free and does not require an account. User progress is synced privately via iCloud, ensuring no personal data is tracked or accessible by the developers.

### What devices is Scale Degree available on?

Currently, Scale Degree is supported on iPhone devices. The app was released on August 18, 2026, with version 1.0.

### How often is Scale Degree updated?

The application was last updated on August 18, 2026, with version 1.0. Further update frequency is not specified, but the initial release indicates ongoing development.

### What is the price of Scale Degree?

Scale Degree is a paid application priced at $1.99. This one-time purchase grants access to all its features.

### What is the age rating for Scale Degree?

Scale Degree has an age rating of 4+. This indicates it is suitable for a wide range of users, including younger learners interested in music theory.

## Version history (last 1 release)

### 1.0 — 2026-08-18

No release notes.

## Apps similar to Scale Degree

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Verbare - Portuguese verbs](https://appshunter.io/ios/app/verbare-portuguese-verbs/id6757960069) | — | Free | Education |
| [Ollie for Coursera Plus](https://appshunter.io/ios/app/ollie-for-coursera-plus/id6753018110) | 4.0 (7) | Free | Education |
| [Linguamill Language Flashcards](https://appshunter.io/ios/app/linguamill-language-flashcards/id1577415397) | 5.0 (10) | Free | Education |
| [MomenTalk: Practice Speaking](https://appshunter.io/ios/app/momentalk-practice-speaking/id6502671990) | — | Free | Education |
| [Trumpet Trainer](https://appshunter.io/ios/app/trumpet-trainer/id6785914116) | 3.8 (9) | Free | Education |
| [Learn music theory with Sonid](https://appshunter.io/ios/app/learn-music-theory-with-sonid/id1490221762) | 4.7 (215) | Free | Education |

---

*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 2026-10-18.*