# Scales Pro Trainer vs GPMuse

The clearest difference is in-app purchases: GPMuse at none against Scales Pro Trainer's 4. Scales Pro Trainer's advantage is iOS requirement (15.6 vs 18.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Scales Pro Trainer sells 4 in-app purchases, starting at $1.99 per month. GPMuse asks for nothing beyond the download.

Scales Pro Trainer ships an update every 9 days, GPMuse every 2 weeks. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Scales Pro Trainer | GPMuse |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 2 weeks |
| Size | 14 MB | 37 MB |
| Requires iOS | **15.6** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Bamuda Corporation Pty Ltd](https://appshunter.io/developer/395135697) | [Hung Truong Khanh](https://appshunter.io/developer/1762420034) |

## What reviewers say

### Scales Pro Trainer

[App page](https://appshunter.io/ios/app/scales-pro-trainer/id6759959652)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access: All Scales (1 Month) | $1.99 | per month |
| Unlock All Scales & Modes(6 Months) | $8.99 | per 6 months |
| Unlock All Scales & Modes(one Year) | $14.99 | per year |
| Scales Pro Trainer Lifetime Access | $29.99 | one-time |


### GPMuse

[App page](https://appshunter.io/ios/app/gpmuse-music-notation/id6761681276)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Scales Pro Trainer free?

Scales Pro Trainer is free to download, with in-app purchases available.

### Is GPMuse free?

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

### Do Scales Pro Trainer or GPMuse have ads?

Neither Scales Pro Trainer nor GPMuse shows ads.

### Which is updated more often, Scales Pro Trainer or GPMuse?

Scales Pro Trainer ships an update every 9 days, and GPMuse every 2 weeks. Most recently, Scales Pro Trainer was updated on October 28, 2026 and GPMuse on October 24, 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.*