# parker vs 4cm（ヨンセンチ）

parker and 4cm（ヨンセンチ） are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

parker ships an update every 54 months, 4cm（ヨンセンチ） every 38 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | parker | 4cm（ヨンセンチ） |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 54 months | **Every 38 months** |
| Size | 3 MB | 3 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [shun nakanishi](https://appshunter.io/developer/1568655395) | [shingo kamei](https://appshunter.io/developer/1256845824) |

## What reviewers say

### parker

[App page](https://appshunter.io/ios/app/parker/id1568655393)

**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 parker free?

parker 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 parker or 4cm（ヨンセンチ） have ads?

Neither parker nor 4cm（ヨンセンチ） shows ads.

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

parker ships an update every 54 months, and 4cm（ヨンセンチ） every 38 months. Most recently, parker was updated on November 3, 2026 and 4cm（ヨンセンチ） on November 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.*