# mm（ミリ） vs pocket（ポケット）

The clearest difference is update cadence: mm（ミリ） at every 27 months against pocket（ポケット）'s every 61 months. 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.

mm（ミリ） ships an update every 27 months, pocket（ポケット） every 61 months. The most recent releases landed on October 6, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | mm（ミリ） | pocket（ポケット） |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 27 months** | Every 61 months |
| Size | 3 MB | 3 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Naoya Takahashi](https://appshunter.io/developer/1301211980) | [MASAYUKI SAKUMA](https://appshunter.io/developer/1570390079) |

## What reviewers say

### mm（ミリ）

[App page](https://appshunter.io/ios/app/mm/id1555989314)

**In-app purchases:** none


### pocket（ポケット）

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

**In-app purchases:** none


## Frequently asked questions

### Is mm（ミリ） free?

mm（ミリ） is free to download, with no in-app purchases.

### Is pocket（ポケット） free?

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

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

Neither mm（ミリ） nor pocket（ポケット） shows ads.

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

mm（ミリ） ships an update every 27 months, and pocket（ポケット） every 61 months. Most recently, mm（ミリ） was updated on October 6, 2026 and pocket（ポケット） on September 17, 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.*