# KEYCANVAS vs Cantus

The clearest difference is update cadence: Cantus at every 5 days against KEYCANVAS's every 4 months. KEYCANVAS's advantage is iOS requirement (13.4 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

KEYCANVAS ships an update every 4 months, Cantus every 5 days. The most recent releases landed on September 11, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | KEYCANVAS | Cantus |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 days** |
| Size | 514 MB | 3 MB |
| Requires iOS | **13.4** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [iDance](https://appshunter.io/developer/1680177485) | [Jason Zachariah](https://appshunter.io/developer/1896513710) |

## What reviewers say

### KEYCANVAS

[App page](https://appshunter.io/ios/app/keycanvas/id6447109406)

**In-app purchases:** none


### Cantus

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

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

**In-app purchases:** none


## Frequently asked questions

### Is KEYCANVAS free?

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

### Is Cantus free?

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

### Do KEYCANVAS or Cantus have ads?

Neither KEYCANVAS nor Cantus shows ads.

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

KEYCANVAS ships an update every 4 months, and Cantus every 5 days. Most recently, KEYCANVAS was updated on September 11, 2026 and Cantus on September 17, 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.*