# CALME あいづ 公式アプリ vs CORON

The clearest difference is update cadence: CALME あいづ 公式アプリ at every 37 months against CORON's every 75 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.

CALME あいづ 公式アプリ ships an update every 37 months, CORON every 75 months. Both last shipped on November 11, 2026.

## The numbers

| Metric | CALME あいづ 公式アプリ | CORON |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 37 months** | Every 75 months |
| Size | 16 MB | 17 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SAORI ANAZAWA](https://appshunter.io/developer/1447876827) | [TAKUMI HIRAO](https://appshunter.io/developer/1471983110) |

## What reviewers say

### CALME あいづ 公式アプリ

[App page](https://appshunter.io/ios/app/calme/id1447876828)

**In-app purchases:** none


### CORON

[App page](https://appshunter.io/ios/app/coron/id1471983111)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CALME あいづ 公式アプリ free?

CALME あいづ 公式アプリ is free to download, with no in-app purchases.

### Is CORON free?

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

### Do CALME あいづ 公式アプリ or CORON have ads?

Neither CALME あいづ 公式アプリ nor CORON shows ads.

### Which is updated more often, CALME あいづ 公式アプリ or CORON?

CALME あいづ 公式アプリ ships an update every 37 months, and CORON every 75 months. Most recently, CALME あいづ 公式アプリ was updated on November 11, 2026 and CORON on November 11, 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.*