# メトロノーム Poly vs ShamiScore

The clearest difference is in-app purchases: メトロノーム Poly at none against ShamiScore's 1. メトロノーム Poly also leads on iOS requirement (15.6 vs 18.0). ShamiScore's advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. ShamiScore sells 1 one-off in-app purchase. メトロノーム Poly asks for nothing beyond the download.

メトロノーム Poly ships an update every 6 days, ShamiScore every 3 days. The most recent releases landed on October 5, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | メトロノーム Poly | ShamiScore |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 days | **Every 3 days** |
| Size | 6 MB | 14 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Nito Kiyoshi](https://appshunter.io/developer/1861743869) | [Shu Kawakami](https://appshunter.io/developer/1746443537) |

## What reviewers say

### メトロノーム Poly

[App page](https://appshunter.io/ios/app/poly-2/id6756605549)

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

**In-app purchases:** none


### ShamiScore

[App page](https://appshunter.io/ios/app/shamiscore/id6767441963)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ShamiScore Pro | $99.99 | one-time |


## Frequently asked questions

### Is メトロノーム Poly free?

メトロノーム Poly is free to download, with no in-app purchases.

### Is ShamiScore free?

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

### Do メトロノーム Poly or ShamiScore have ads?

メトロノーム Poly shows ads; ShamiScore does not.

### Which is updated more often, メトロノーム Poly or ShamiScore?

メトロノーム Poly ships an update every 6 days, and ShamiScore every 3 days. Most recently, メトロノーム Poly was updated on October 5, 2026 and ShamiScore 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.*