# Scale Theory

> Internalize music theory.

Canonical page: [https://chrome-stats.com/d/id6761800685](https://chrome-stats.com/d/id6761800685)

## Overview

- **ID:** `id6761800685`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** YellowDress
- **Category:** Music
- **Version:** 1.0
- **Last updated:** 2026-05-25
- **First published:** 2026-05-25
- **Size:** 19 MB
- **Data as of:** 2026-09-18
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/scale-theory/id6761800685)
- **Privacy policy:** [https://scaletheoryapp.com/privacy-policy/](https://scaletheoryapp.com/privacy-policy/)

## Description

You know the theory. You just have to look it up.

Scale Theory is a drill tool for musicians who want faster, more reliable recall — key signatures, diatonic harmony, modes, chord functions, and relative minor relationships. Not slower. Not effortful. Just known.

What you'll learn:
• Key signatures: sharps, flats, and which notes they are, in both directions
• Relative minor keys, quizzed both ways
• Diatonic triads and seventh chords in every major key — names, qualities, and notes
• All seven modes: names, interval formulas, and characteristic chords
• Chord functions: identify and spell the dominant seventh and half-diminished chord in any key

How it works:
Each topic follows a review-then-quiz loop. New items are revealed one piece at a time, so you're predicting the next step before it appears. After every few new items, a recap quiz covers everything learned so far — not just what's recent. A randomized Practice mode presents questions in mixed formats across all keys, with upcoming answers hidden so you can't read ahead.

Key signatures follow circle-of-fifths order, which is how keys actually relate to each other.

Who it's for:
• Players who want to think faster when improvising or reading charts. 
• Anyone whose theory knowledge lives in their head in a slow, effortful way.
• Students prepping for graded exams. 

This is a drill tool, not a lesson. It assumes you've encountered these concepts — it's here to make them automatic.

## Rankings

- #1,116,261 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6761800685)