# ギター 楽譜 JamJam vs なんの音？

The clearest difference is update cadence: なんの音？ at every 3 days against ギター 楽譜 JamJam's every 2 months. ギター 楽譜 JamJam's advantage is iOS requirement (13.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ギター 楽譜 JamJam ships an update every 2 months, なんの音？ every 3 days. The most recent releases landed on October 11, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | ギター 楽譜 JamJam | なんの音？ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Size | 65 MB | 4 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [kotani harumi](https://appshunter.io/developer/1751649806) | [Takashi Kishida](https://appshunter.io/developer/1874541509) |

## What reviewers say

### ギター 楽譜 JamJam

[App page](https://appshunter.io/ios/app/jamjam/id6763877947)

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

**In-app purchases:** none


### なんの音？

[App page](https://appshunter.io/ios/app/id6808942407)

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

**In-app purchases:** none


## Frequently asked questions

### Is ギター 楽譜 JamJam free?

ギター 楽譜 JamJam is free to download, with no in-app purchases.

### Is なんの音？ free?

なんの音？ is free to download, with no in-app purchases.

### Do ギター 楽譜 JamJam or なんの音？ have ads?

Neither ギター 楽譜 JamJam nor なんの音？ shows ads.

### Which is updated more often, ギター 楽譜 JamJam or なんの音？?

ギター 楽譜 JamJam ships an update every 2 months, and なんの音？ every 3 days. Most recently, ギター 楽譜 JamJam was updated on October 11, 2026 and なんの音？ on October 3, 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.*