# Quinterval vs Chordio

The clearest difference is update cadence: Chordio at every 10 days against Quinterval's every 8 months. Quinterval's advantage is review sentiment (78% vs 62%). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Quinterval sells 1 one-off in-app purchase and Chordio sells 19 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.3 for Quinterval against 4.4 for Chordio. Both are backed by a comparable volume of ratings — 20 and 8 respectively. Written reviews are what separate them: 78% of Quinterval's written reviews are positive against 62% of Chordio's.

Quinterval ships an update every 8 months, Chordio every 10 days. The most recent releases landed on September 18, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | Quinterval | Chordio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (20 ratings)](https://appshunter.io/ios/app/quinterval/id373810100/reviews) | **[4.4 (8 ratings)](https://appshunter.io/ios/app/chordio-compose-and-learn-music/id1580214821/reviews)** |
| Number of ratings | **20** | 8 |
| Positive reviews | **78.2% of reviews** | 61.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 10 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 43 MB | 199 MB |
| Requires iOS | **15.6** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Oliver Hahn](https://appshunter.io/developer/324458008) | [One In A Billion Ltd](https://appshunter.io/developer/479881389) |

## What reviewers say

### Quinterval

[App page](https://appshunter.io/ios/app/quinterval/id373810100)

Explore the circle of fifths with interactive scale displays. Select keys via touch or slider to view major and parallel minor scales. Customize note notation and clef for a personalized musical experience.

**Highlights:** Interactive circle of fifths, Major and parallel minor scale display, Adjustable display range, Customizable note notation (German, English, Italian), Clef selection (G, C, F), Key signature display

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Enhanced Version | $0.99 | one-time |


### Chordio

[App page](https://appshunter.io/ios/app/chordio-compose-and-learn-music/id1580214821)

This app is a music composition and theory tool that helps musicians explore chords and scales interactively. It offers features for creating, storing, and rearranging chord progressions, along with integrated music theory lessons and practice tools. It's designed to spark creativity and enhance music learning for producers, composers, and educators.

**Highlights:** Chord progression generator, Custom chord creation and editing, Real-time MIDI input visualization, Scales and modes practice, Music theory lessons and quizzes, Sheet music practice tools, Chord Suggestion AI

**Features:** Vision Pro support

**In-app purchases (19)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Free Chord Pack | Free | one-time |
| Gymnopedie No.1 | $1.99 | one-time |
| Arabesque No.1 | $1.99 | one-time |
| Gnossienne No.1 | $1.99 | one-time |
| Chord Progressions 251 No.1 | $2.99 | one-time |
| Jazz Progressions 01 | $5.99 | one-time |
| Neo-Soul Progressions 01 | $5.99 | one-time |
| Neo-Soul Tunes 01 | $5.99 | one-time |
| RnB Chords No.1 | $5.99 | one-time |
| Classical Progressions 1 | $5.99 | one-time |
| II-V-I Progression | $5.99 | one-time |
| RnB Progressions 01 | $5.99 | one-time |
| Beginner Essentials | $6.99 | one-time |
| RnB Progressions, Vol. 1 | $7.99 | one-time |
| II-V-I Jazz Progressions | $9.99 | one-time |
| Jazz Progression, Vol. 1 | $9.99 | one-time |
| Jazz Lick Exercises, Vol. 1 | $9.99 | one-time |
| Classical Collection, Vol. 1 | $14.99 | one-time |
| Unlock App | $14.99 | one-time |


## Frequently asked questions

### Is Quinterval free?

Quinterval is free to download, with in-app purchases available.

### Is Chordio free?

Chordio is free to download, with in-app purchases available.

### Which has better reviews, Quinterval or Chordio?

Chordio is rated higher. Quinterval averages 4.3 out of 5 from 20 ratings, while Chordio averages 4.4 from 8 ratings.

### Do Quinterval or Chordio have ads?

Neither Quinterval nor Chordio shows ads.

### Which is updated more often, Quinterval or Chordio?

Quinterval ships an update every 8 months, and Chordio every 10 days. Most recently, Quinterval was updated on September 18, 2026 and Chordio on September 6, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*