# 100文字日記 - スキマ時間に書ける超シンプル時短日記

> A simple 100-character daily journal app with reminders and editing. (iPhone/iPad app by Yuki Ezawa.)

- Source: https://appshunter.io/ios/app/100/id6745531410 (this page in markdown: same URL + `.md`)
- Developer: [Yuki Ezawa](https://appshunter.io/developer/1795374623)
- Category: Lifestyle, Utilities
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 45 MB
- Languages: Japanese
- Released: 2025-06-01
- Data updated: 2026-10-03
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/100/id6745531410/reviews.md

## What is 100文字日記?

「長々と書くのはハードルが高い」「毎日振り返りたいけれど時間がない」そんな方にぴったりのアプリが『Diary100』です。1件の日記につき最大100文字までという制限があるため、サクッと気軽に文章をまとめられます。
保存した日記は一覧画面で日付と本文がチェックできます。気になる日をタップすると、日記の編集画面に移動し、後から本文を修正したり削除することも簡単。リマインダー通知機能があるので、書き忘れを防止しつつ自然と習慣化できます。
毎日続けることで得られる「小さな振り返り」が、忙しい日々の合間に大きな気づきを与えてくれるかもしれません。ぜひ『Diary100』で、手軽で続けやすい新しい日記習慣を始めてみてください。

## Key features

- 100-character limit per entry
- Daily journaling
- Reminder notifications
- Edit and delete entries
- List view of past entries
- Habit building

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/100/id6745531410/reviews.md

### 5/5 — めちゃくちゃいい

*2025-10-16*

ワントピック100文字制限なので、書くことのハードルが下がる。また写真も1枚添付できる点も素晴らしい。1人SNSのような気軽さで使える。

## Frequently asked questions about 100文字日記

### What is 100文字日記?

100文字日記 is a simple journaling app designed for quick daily entries. It limits each entry to a maximum of 100 characters, making it easy to jot down thoughts and reflections without taking up too much time.

### How does 100文字日記 help with habit formation?

The app includes a reminder notification feature to help users remember to write their daily entry. This consistent prompting encourages users to build a regular journaling habit.

### Can I edit or delete past entries in 100文字日記?

Yes, you can easily edit or delete past entries. Tapping on a specific date in the list view will take you to the editing screen, allowing you to modify or remove your journal entries.

### What devices does 100文字日記 support?

100文字日記 is available for iPhone and iPod devices. It is designed to be accessible on these Apple mobile platforms.

### How often is 100文字日記 updated?

The app was last updated on January 12, 2026, with version 1.0.2. This indicates a recent update, suggesting ongoing development and support.

### Does 100文字日記 have ads?

Yes, 100文字日記 contains advertisements. Users should expect to see ads while using the application.

### What is the age rating for 100文字日記?

100文字日記 has an age rating of 4+. This means it is suitable for users of all ages, with no content restrictions.

### What are the benefits of using 100文字日記?

The app promotes a simple and sustainable journaling habit by keeping entries brief. Regular use can lead to 'small reflections' that may offer significant insights during busy days.

## Version history (last 3 releases)

### 1.0.2 — 2026-01-12

レーティングに関する情報を更新しました。

### 1.0.1 — 2025-06-10

軽微なバグを修正しました！

### 1.0.0 — 2025-05-27

No release notes.

## More apps by Yuki Ezawa

- [寝る前日記](https://appshunter.io/ios/app/id6741747211)
- [なぐさめちゃん](https://appshunter.io/ios/app/id6746960582)
- [AIテキストスタイル変換](https://appshunter.io/ios/app/ai/id6747290640)
- [Absolute Pitch Test](https://appshunter.io/ios/app/absolute-pitch-test/id6747315054)
- [レピメモ](https://appshunter.io/ios/app/id6759214426)

All apps by Yuki Ezawa: https://appshunter.io/developer/1795374623

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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 2026-10-03.*