# Fretboard Master vs iRetroMuse

The clearest difference is in-app purchases: iRetroMuse at none against Fretboard Master's 1. Fretboard Master's advantage is iOS requirement (15.0 vs 26.5). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Fretboard Master sells 1 one-off in-app purchase. iRetroMuse asks for nothing beyond the download.

Fretboard Master ships an update every 3 weeks, iRetroMuse monthly. Both last shipped on November 5, 2026.

## The numbers

| Metric | Fretboard Master | iRetroMuse |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 3 weeks** | Monthly |
| Size | 29 MB | 10 MB |
| Requires iOS | **15.0** | 26.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ANTENNA WORKS](https://appshunter.io/developer/1881914213) | [Kouki Yoshimoto](https://appshunter.io/developer/1884780659) |

## What reviewers say

### Fretboard Master

[App page](https://appshunter.io/ios/app/fretboard-master-learn-scales/id6759956775)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告を削除 | $1.99 | one-time |


### iRetroMuse

[App page](https://appshunter.io/ios/app/iretromuse/id6770200570)

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

**In-app purchases:** none


## Frequently asked questions

### Is Fretboard Master free?

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

### Is iRetroMuse free?

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

### Do Fretboard Master or iRetroMuse have ads?

Both Fretboard Master and iRetroMuse show ads.

### Which is updated more often, Fretboard Master or iRetroMuse?

Fretboard Master ships an update every 3 weeks, and iRetroMuse monthly. Most recently, Fretboard Master was updated on November 5, 2026 and iRetroMuse on November 5, 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.*