# Acchordion vs Cantus

Acchordion and Cantus are too close to call on the numbers: across 8 compared parameters — price, rating, ratings volume and ads among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Acchordion against 5.0 for Cantus. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

## The numbers

| Metric | Acchordion | Cantus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/acchordion/id6736920308/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/cantus-voicing-lab/id6772984019/reviews) |
| Number of ratings | **2** | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 5 days |
| Monetization | Free | Free |
| Size | 0 MB | 3 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Oojoo Studio, LLC](https://appshunter.io/developer/1711859875) | [Jason Zachariah](https://appshunter.io/developer/1896513710) |

## What reviewers say

### Acchordion

[App page](https://appshunter.io/ios/app/acchordion/id6736920308)

This app helps you learn seventh chords by listening to you play or sing. It provides immediate feedback to ensure you're practicing correctly, making it easier to read music, learn songs, improvise, and write your own. Master these essential chords to enhance your musical skills.

**Highlights:** Listens to instrument or vocal input, Identifies played notes, Matches four notes in a chord, Filters chords by root note, Filters chords by family, Provides immediate feedback

**Features:** macOS Compatibility

**In-app purchases:** none


### Cantus

[App page](https://appshunter.io/ios/app/cantus-voicing-lab/id6772984019)

This interactive tool helps musicians explore harmony and chord voicings on a virtual piano. It allows users to visualize how notes move within chords, understand modal relationships, and develop a feel for harmony through focused practice.

**Highlights:** Interactive chord and voicing exploration, Piano keyboard visualization, Modal and scale-based harmony practice, Voice-leading movement analysis, Tone.js audio playback, Account-free operation

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

**In-app purchases:** none


## Frequently asked questions

### Is Acchordion free?

Acchordion is free to download, with no in-app purchases.

### Is Cantus free?

Cantus is free to download, with no in-app purchases.

### Which has better reviews, Acchordion or Cantus?

Acchordion and Cantus are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do Acchordion or Cantus have ads?

Neither Acchordion nor Cantus shows ads.

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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.*