# Couples Diary: One Line — One line a day, between two

> One line a day, between two (iPhone/iPad app by AKIHIRO MATSUYAMA.)

- Source: https://appshunter.io/ios/app/couples-diary-one-line/id6789925019 (this page in markdown: same URL + `.md`)
- Developer: [AKIHIRO MATSUYAMA](https://appshunter.io/developer/6789115438)
- Category: Lifestyle
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 22 MB
- Languages: Japanese
- Released: 2026-08-14
- Data updated: 2026-09-16
- User reviews in markdown: https://appshunter.io/ios/app/couples-diary-one-line/id6789925019/reviews.md

## What is Couples Diary?

You do not have to talk a lot every day. One line a day is something you can keep up. Couples Diary is a quiet shared diary for a partner or a spouse.

[One line a day, exchanged]
- You each write your line for the day
- Only on a day when both of you have written does the other person's line open (writing first never puts pressure on the other)
- Lines you have written can be read back quietly, later

[Remember the days that matter]
- Register the day you met, an anniversary, anything
- A quiet word the day before
- There is no limit on how many anniversaries you keep

[Designed never to nudge or compare]
- No reminder notifications sent to the other person
- No read receipts, and no "typing" indicator

[Made to be safe to use]
- No ads
- Your line and your anniversaries travel through a server that connects the two of you, and reach only each other (no photos, no location)
- No names and no accounts. All that connects you is a shared phrase
- No in-app purchases (nothing further is ever charged)

Not many words. Just one a day, between the two of you.

Developed by SAKURA PRODUCTS


## Version history (last 3 releases)

### 1.0.2 — 2026-09-04

• Fixed the share button not responding on iPad
• Minor display and stability improvements

### 1.0.1 — 2026-08-21

記念日の登録件数の上限をなくしました。これまで4件目以降を登録できない状態でしたが、いくつでも登録できます。あわせて、アプリ内と掲載文の説明を実際の動作に合わせて見直しました。

### 1.0.0 — 2026-08-14

No release notes.

## More apps by AKIHIRO MATSUYAMA

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- [目利きカメラ せどり・物販の利益計算](https://appshunter.io/ios/app/id6789199082)
- [AI英会話 にゃんと｜話す練習・初心者・文法チェック](https://appshunter.io/ios/app/ai/id6789363105)
- [AI韓国語 にゃんと｜推し活・ハングル・初心者から](https://appshunter.io/ios/app/ai/id6789367043)

All apps by AKIHIRO MATSUYAMA: https://appshunter.io/developer/6789115438

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-16.*