# Chord Doctor

> Educational app for mastering music theory fundamentals with adaptive quizzes. (iPhone/iPad app by Mike De Grace Zachary.)

- Source: https://appshunter.io/ios/app/chord-doctor/id6461165085 (this page in markdown: same URL + `.md`)
- Developer: [Mike De Grace Zachary](https://appshunter.io/developer/1702354906)
- Category: Education, Reference
- Price: Free with in-app purchases
- Rating: 5.00/5 from 6 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 28 MB
- Languages: American English
- Released: 2023-11-15
- Data updated: 2026-08-26
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/chord-doctor/id6461165085/reviews.md

## What is Chord Doctor?

Chord Doctor is an app designed to help you master the basic materials of music. It conveniently divides the facts of music into units that can be mastered in a reasonable amount of time. And there is a teacher’s logic built into the app. If you answer a question incorrectly, that question returns with increased frequency until you can answer it with confidence.

There are many reasons for learning music theory. Some students need to learn it because it is a required part of their private music lessons or because they must demonstrate a proficiency in theory to compete in music festivals. Others want to learn theory in order to lay a foundation for keyboard improvisation. For some, music theory is a requirement in a college music curriculum, for others, it is a subject that simply helps them understand the inner workings of the astonishingly beautiful art of music.

## Key features

- Structured music theory units
- Adaptive quiz system
- Teacher's logic for learning
- Progressive difficulty
- Focus on basic materials

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Pro Level | $4.49 | one-time |
| Expert Level | $4.49 | one-time |


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/chord-doctor/id6461165085/reviews.md

### 5/5 — Love Chord Doctor!

*2025-08-09*

I used “Chord Doctor” in junior high and high school back when it was a CD-rom you stuck in your computer, and now as a piano teacher myself, I’m so grateful for this app to recommend to students and to use during my private lessons as well. I literally aced my way through my first semester of Music Theory in college without having to study for one quiz, and that was all thanks to my hours spent on Chord Doctor in high school. Chord Doctor is exactly what a church pianist needs, or anyone who wants a solid foundation in music theory.

### 5/5 — Great app for Church pianist

*2023-11-17*

Praise the Lord!

## Frequently asked questions about Chord Doctor

### What is Chord Doctor's learning methodology?

Chord Doctor breaks down music theory into manageable units. It employs a teacher's logic, re-presenting incorrect answers with increased frequency until mastery is achieved.

### How does Chord Doctor track user progress?

The app's adaptive quiz system tracks user performance by identifying questions answered incorrectly. These questions are then revisited more often to reinforce learning and ensure proficiency.

### Does Chord Doctor offer certifications?

The provided information does not mention whether Chord Doctor offers formal certifications. Its focus is on building a strong foundation in music theory.

### What devices is Chord Doctor available on?

Chord Doctor is available on iPhone, iPad, and iPod devices, making it accessible for a wide range of Apple users.

### What is the age rating for Chord Doctor?

Chord Doctor has an age rating of 4+, indicating it is suitable for young learners and above.

### How often is Chord Doctor updated?

The latest version is 1.2.0, last updated on May 19, 2025. This suggests a relatively active development cycle for the app.

### What do users like about Chord Doctor?

With a 5.0-star rating from 6 reviews, users likely appreciate its effective learning methodology and the adaptive nature of its quizzes for mastering music theory.

### Does Chord Doctor have ads?

No, Chord Doctor does not contain advertisements, providing an uninterrupted learning experience for its users.

## Version history (last 5 releases)

### 1.3.0 — 2026-07-28

Bug fixes

### 1.2.0 — 2025-05-19

Bug fix

### 1.1.0 — 2025-05-04

bug fixes

### 1.0.6 — 2023-12-05

Bug fix setting default keyboard size.

### 1.0.5 — 2023-12-04

Fixes a bug in analysis levels in landscape orientation

## Apps similar to Chord Doctor

| App | Rating | Price | Category |
| --- | --- | --- | --- |
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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 2026-08-26.*