# こいぶみ｜カップルの手紙と交換日記 vs Re

The clearest difference is ads: こいぶみ｜カップルの手紙と交換日記 at none against Re's shown. こいぶみ｜カップルの手紙と交換日記 also leads on update cadence (every 3 days vs weekly) and iOS requirement (15.1 vs 17.0). On price, 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.

こいぶみ｜カップルの手紙と交換日記 ships an update every 3 days, Re weekly. The most recent releases landed on September 17, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | こいぶみ｜カップルの手紙と交換日記 | Re |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Weekly |
| Size | 120 MB | 19 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shunya Iwasaki](https://appshunter.io/developer/1796095304) | [CHIHIRO AKAMA](https://appshunter.io/developer/1854289855) |

## What reviewers say

### こいぶみ｜カップルの手紙と交換日記

[App page](https://appshunter.io/ios/app/id6760828199)

**In-app purchases:** none


### Re

[App page](https://appshunter.io/ios/app/rediary/id6763077326)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is こいぶみ｜カップルの手紙と交換日記 free?

こいぶみ｜カップルの手紙と交換日記 is free to download, with no in-app purchases.

### Is Re free?

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

### Do こいぶみ｜カップルの手紙と交換日記 or Re have ads?

Re shows ads; こいぶみ｜カップルの手紙と交換日記 does not.

### Which is updated more often, こいぶみ｜カップルの手紙と交換日記 or Re?

こいぶみ｜カップルの手紙と交換日記 ships an update every 3 days, and Re weekly. Most recently, こいぶみ｜カップルの手紙と交換日記 was updated on September 17, 2026 and Re on September 13, 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.*