# GPMuse vs Notation

The clearest difference is in-app purchases: GPMuse at none against Notation's 1. GPMuse also leads on iOS requirement (18.6 vs 26.0). Notation's advantage is update cadence (every 4 days vs every 2 weeks). On price, ads and device support there is nothing between them.

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

GPMuse ships an update every 2 weeks, Notation every 4 days. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | GPMuse | Notation |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Size | 37 MB | 15 MB |
| Requires iOS | **18.6** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hung Truong Khanh](https://appshunter.io/developer/1762420034) | [Moritz Kuntz](https://appshunter.io/developer/6810807204) |

## What reviewers say

### GPMuse

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

**Features:** Vision Pro support

**In-app purchases:** none


### Notation

[App page](https://appshunter.io/ios/app/notation-sheet-music-and-loops/id6817260005)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $9.00 | one-time |


## Frequently asked questions

### Is GPMuse free?

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

### Is Notation free?

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

### Do GPMuse or Notation have ads?

Neither GPMuse nor Notation shows ads.

### Which is updated more often, GPMuse or Notation?

GPMuse ships an update every 2 weeks, and Notation every 4 days. Most recently, GPMuse was updated on October 31, 2026 and Notation on November 6, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*