# Cham（チャム） vs JP

The clearest difference is update cadence: JP at monthly against Cham（チャム）'s every 39 months. Cham（チャム）'s advantage is iOS requirement (13.0 vs 16). 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.

Cham（チャム） ships an update every 39 months, JP monthly. The most recent releases landed on October 10, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Cham（チャム） | JP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 39 months | **Monthly** |
| Size | 4 MB | 210 MB |
| Requires iOS | **13.0** | 16 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Naoya Takahashi](https://appshunter.io/developer/1301211980) | [一般社団法人JP-MIRAI](https://appshunter.io/developer/1753223900) |

## What reviewers say

### Cham（チャム）

[App page](https://appshunter.io/ios/app/cham/id1615948567)

**In-app purchases:** none


### JP

[App page](https://appshunter.io/ios/app/jp-mirai/id1621260241)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Cham（チャム） free?

Cham（チャム） is free to download, with no in-app purchases.

### Is JP free?

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

### Do Cham（チャム） or JP have ads?

Neither Cham（チャム） nor JP shows ads.

### Which is updated more often, Cham（チャム） or JP?

Cham（チャム） ships an update every 39 months, and JP monthly. Most recently, Cham（チャム） was updated on October 10, 2026 and JP on October 5, 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.*