# Quinterval vs All Chords

The clearest difference is update cadence: All Chords at every 3 months against Quinterval's every 8 months. Quinterval's advantage is ratings volume (21 vs 6). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. Quinterval sells 1 one-off in-app purchase and All Chords sells 6 in-app purchases, starting at $0.99 per year. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.4 for Quinterval against 4.3 for All Chords. Both are backed by a comparable volume of ratings — 21 and 6 respectively. Written reviews are what separate them: 78% of Quinterval's written reviews are positive against 75% of All Chords's.

Quinterval ships an update every 8 months, All Chords every 3 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Quinterval | All Chords |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (21 ratings)](https://appshunter.io/ios/app/quinterval/id373810100/reviews)** | [4.3 (6 ratings)](https://appshunter.io/ios/app/all-chords-all-scales/id1613557968/reviews) |
| Number of ratings | **21** | 6 |
| Positive reviews | **78.2% of reviews** | 75.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 43 MB | 29 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Oliver Hahn](https://appshunter.io/developer/324458008) | [Michael Schallmayer](https://appshunter.io/developer/1613557970) |

## 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 |

**What reviewers like**

- 👍 Simple and easy to use
- 💡 Great for learning music theory
- ✨ Clean UI design
- 💰 Good pricing for Pro version
- 🆓 Free and ad-free

**What reviewers complain about**

- 🤔 Lacks in-app instructions
- 🎛️ Limited functionality (e.g., one octave)
- 🎶 No audio output for scales
- 🎚️ Incomplete key signatures (e.g., missing 7 sharps/flats)
- 🎛️ Enharmonic display issues (Gb/F#)

**Reported bugs**

- Stummmodus prevents sound playback
- Errors in scales with sharps
- App crashes on startup (iOS 5.5.1)
- App closes immediately after opening since last update
- Gb/F# enharmonic bug

**Requested features**

- Include traditional Roman Numerals to degree scale
- Add C flat Maj with 7 flats
- Add C sharp Maj with 7 sharps
- Option for both accidentals
- Multiple octave scales


### All Chords

[App page](https://appshunter.io/ios/app/all-chords-all-scales/id1613557968)

Explore a comprehensive library of chords, scales, and arpeggios across various genres and keys. Identify musical positions and fingerings for guitar and piano with a built-in analyzer. Offers a free demo with an optional annual subscription for full access.

**Highlights:** Extensive chord and arpeggio library, 66 modern and 61 world music scales, Chord and scale identification tool, Guitar and piano fingerings, Color-coded tone functions, Ear and vocal training player

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual subscription | $0.99 | per year |
| No Budget Subscription | $0.99 | per year |
| Support - Annual Subscription | $3.99 | per year |
| Low Budget Subscription | $3.99 | per year |
| Standard Subscription | $12.99 | per year |
| Support Subscription | $59.99 | per year |


## Frequently asked questions

### Is Quinterval free?

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

### Is All Chords free?

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

### Which has better reviews, Quinterval or All Chords?

Quinterval is rated higher. Quinterval averages 4.4 out of 5 from 21 ratings, while All Chords averages 4.3 from 6 ratings.

### Do Quinterval or All Chords have ads?

Neither Quinterval nor All Chords shows ads.

### Which is updated more often, Quinterval or All Chords?

Quinterval ships an update every 8 months, and All Chords every 3 months. Most recently, Quinterval was updated on November 6, 2026 and All Chords on November 3, 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.*