# M vs Cantus

The clearest difference is rating: Cantus at 5.0 against M's 2.5. Cantus also leads on in-app purchases (none vs 5) and update cadence (every 5 days vs every 3 weeks). M's advantage is ratings volume (4 vs 1) and iOS requirement (12.0 vs 15.0). On price and device support there is nothing between them.

Both are free to download. M sells 5 in-app purchases, starting at $3.49 per month. Cantus asks for nothing beyond the download.

Cantus holds the better App Store score, 5.0 against 2.5. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

M ships an update every 3 weeks, Cantus every 5 days. The most recent releases landed on October 9, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | M | Cantus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.5 (4 ratings)](https://appshunter.io/ios/app/m-gen/id1484274043/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cantus-voicing-lab/id6772984019/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | — | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 25 MB | 3 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nick Carter-Bond](https://appshunter.io/developer/1162644925) | [Jason Zachariah](https://appshunter.io/developer/1896513710) |

## What reviewers say

### M

[App page](https://appshunter.io/ios/app/m-gen/id1484274043)

This app automatically composes original music based on your chosen settings for duration, tempo, and style. You can refine compositions by liking or disliking sections, and export generated music in MP3, MIDI, or sheet music formats. It's designed for content creators, producers, and music enthusiasts.

**Highlights:** Automated music composition, Customizable duration, tempo, and style, Like/Dislike feedback for refinement, Export in MP3, MIDI, and PDF formats, Track Editor for rewriting sections, Separate track generation (melody, harmony, bass, percussion)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Commercial Use License | $3.49 | per month |
| Sharing Pack | $4.49 | per month |
| Library Expansion (+50 slots) | $2.99 | one-time |
| Library Expansion (+100 slots) | $4.99 | one-time |
| Downloads Pack | $6.99 | one-time |


### 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 M free?

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

### Is Cantus free?

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

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

Cantus is rated higher. M averages 2.5 out of 5 from 4 ratings, while Cantus averages 5.0 from 1 ratings.

### Which is updated more often, M or Cantus?

M ships an update every 3 weeks, and Cantus every 5 days. Most recently, M was updated on October 9, 2026 and Cantus on October 21, 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.*