# ORO vs 4cm（ヨンセンチ）

The clearest difference is iOS requirement: ORO at 8.0 against 4cm（ヨンセンチ）'s 13.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

ORO ships an update every 34 months, 4cm（ヨンセンチ） every 38 months. The most recent releases landed on September 18, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | ORO | 4cm（ヨンセンチ） |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 34 months** | Every 38 months |
| Size | 3 MB | 3 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SHUHEI ITO](https://appshunter.io/developer/1552320499) | [shingo kamei](https://appshunter.io/developer/1256845824) |

## What reviewers say

### ORO

[App page](https://appshunter.io/ios/app/oro/id1552320497)

**In-app purchases:** none


### 4cm（ヨンセンチ）

[App page](https://appshunter.io/ios/app/4cm/id6444125643)

**In-app purchases:** none


## Frequently asked questions

### Is ORO free?

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

### Is 4cm（ヨンセンチ） free?

4cm（ヨンセンチ） is free to download, with no in-app purchases.

### Do ORO or 4cm（ヨンセンチ） have ads?

Neither ORO nor 4cm（ヨンセンチ） shows ads.

### Which is updated more often, ORO or 4cm（ヨンセンチ）?

ORO ships an update every 34 months, and 4cm（ヨンセンチ） every 38 months. Most recently, ORO was updated on September 18, 2026 and 4cm（ヨンセンチ） on September 10, 2026.

---

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