# ClefMastery vs ChordCue

The clearest difference is in-app purchases: ChordCue at none against ClefMastery's 1. ChordCue also leads on update cadence (every 2 days vs every 5 days). ClefMastery's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. ClefMastery sells 1 one-off in-app purchase. ChordCue asks for nothing beyond the download.

ClefMastery ships an update every 5 days, ChordCue every 2 days. The most recent releases landed on October 1, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | ClefMastery | ChordCue |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 5 days | **Every 2 days** |
| Size | 20 MB | 24 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Christopher Michaelis](https://appshunter.io/developer/902580084) | [S&T Soft](https://appshunter.io/developer/1023271634) |

## What reviewers say

### ClefMastery

[App page](https://appshunter.io/ios/app/clefmastery/id6759814155)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ClefMastery Lifetime Unlock | $9.99 | one-time |


### ChordCue

[App page](https://appshunter.io/ios/app/chordcue-learn-chords/id6779946332)

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

**In-app purchases:** none


## Frequently asked questions

### Is ClefMastery free?

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

### Is ChordCue free?

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

### Do ClefMastery or ChordCue have ads?

ChordCue shows ads; ClefMastery does not.

### Which is updated more often, ClefMastery or ChordCue?

ClefMastery ships an update every 5 days, and ChordCue every 2 days. Most recently, ClefMastery was updated on October 1, 2026 and ChordCue on October 8, 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.*