# pocket（ポケット） vs CarbonScope

The clearest difference is update cadence: CarbonScope at every 4 months against pocket（ポケット）'s every 61 months. pocket（ポケット）'s advantage is iOS requirement (13.0 vs 16.0). 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.

pocket（ポケット） ships an update every 61 months, CarbonScope every 4 months. The most recent releases landed on October 22, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | pocket（ポケット） | CarbonScope |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 61 months | **Every 4 months** |
| Size | 3 MB | 42 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [MASAYUKI SAKUMA](https://appshunter.io/developer/1570390079) | [Keiichiro Kanemoto](https://appshunter.io/developer/1708542186) |

## What reviewers say

### pocket（ポケット）

[App page](https://appshunter.io/ios/app/pocket/id1570390077)

**In-app purchases:** none


### CarbonScope

[App page](https://appshunter.io/ios/app/carbonscope/id6467379740)

**In-app purchases:** none


## Frequently asked questions

### Is pocket（ポケット） free?

pocket（ポケット） is free to download, with no in-app purchases.

### Is CarbonScope free?

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

### Do pocket（ポケット） or CarbonScope have ads?

Neither pocket（ポケット） nor CarbonScope shows ads.

### Which is updated more often, pocket（ポケット） or CarbonScope?

pocket（ポケット） ships an update every 61 months, and CarbonScope every 4 months. Most recently, pocket（ポケット） was updated on October 22, 2026 and CarbonScope on October 20, 2026.

---

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