# Muse Forge vs Play in Any Key

The clearest difference is update cadence: Play in Any Key at every 6 days against Muse Forge's every 3 weeks. Muse Forge's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 17.6). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Muse Forge sells 2 in-app purchases, starting at $2.99 per month and Play in Any Key sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Muse Forge ships an update every 3 weeks, Play in Any Key every 6 days. The most recent releases landed on October 28, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Muse Forge | Play in Any Key |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 6 days** |
| Monetization | — | Free with in-app purchases |
| Size | 120 MB | 59 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [DeepWave Co., Ltd.](https://appshunter.io/developer/1456517098) | [Mami Kawai](https://appshunter.io/developer/1890495943) |

## What reviewers say

### Muse Forge

[App page](https://appshunter.io/ios/app/muse-forge/id6778660072)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Muse Forge Starter Monthly | $2.99 | per month |
| Muse Forge Creator Monthly | $7.99 | per month |


### Play in Any Key

[App page](https://appshunter.io/ios/app/play-in-any-key/id6800542797)

Easily explore and create chord progressions in any musical key. Listen to popular progressions, build your own, and experiment with song structures. Ideal for songwriters and musicians looking for inspiration.

**Highlights:** Listen to chord progressions in 24 keys, Build custom chord progressions, Combine progressions for song sections, Add bass, rhythm, and drums, View chords on staff and keyboard, Easy Composition tool

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Keys | $0.99 | one-time |


## Frequently asked questions

### Is Muse Forge free?

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

### Is Play in Any Key free?

Play in Any Key is free to download, with in-app purchases available.

### Do Muse Forge or Play in Any Key have ads?

Neither Muse Forge nor Play in Any Key shows ads.

### Which is updated more often, Muse Forge or Play in Any Key?

Muse Forge ships an update every 3 weeks, and Play in Any Key every 6 days. Most recently, Muse Forge was updated on October 28, 2026 and Play in Any Key on October 12, 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.*