# Thirty or Nothing — Write in a 30-minute window

> Write in a 30-minute window (iPhone/iPad app by Kosuke Yamanaka.)

- Source: https://appshunter.io/ios/app/thirty-or-nothing/id6754792565 (this page in markdown: same URL + `.md`)
- Developer: [Kosuke Yamanaka](https://appshunter.io/developer/1690125217)
- Category: Lifestyle
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 98 MB
- Languages: American English, Japanese
- Released: 2025-12-11
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/thirty-or-nothing/id6754792565/reviews.md

## What is Thirty or Nothing?

Thirty or Nothing is a diary app that allows you to write only during a 30-minute window each day, starting from the time you set.

With the motto “Carry the joy of writing through your pen,” this app is for anyone who has quit journaling again and again—and wants to finally make it stick.
It was born from the developer’s own struggle: because you can write anytime, you end up writing “later”… and the habit quietly fades away. By intentionally adding a constraint, Thirty or Nothing aims to spark the urge to write and help you keep going.

Getting started is easy, and the features are intentionally simple:

■Set your “Daily Start Time” on first launch
Starting from your chosen time, you can write your diary for 30 minutes every day.

■Reminder notifications to prevent forgetting
Sends a banner notification at your set time.

■Photo attachments
You can attach up to 5 photos per entry.

■Tags
Register tags with # to organize and group your memories.

■Full-text search
Search your diary entries by keyword.

■Font & text size customization
You can change the font and text size.

Privacy Policy:
https://cob-app.com/2025/12/06/privacy-policy-thirty-or-nothing/

Terms of Service:
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/


## Version history (last 1 release)

### 1.0 — 2025-12-11

No release notes.

## More apps by Kosuke Yamanaka

- [Stirz - Calc & Smart Alarm](https://appshunter.io/ios/app/stirz-calc-and-smart-alarm/id6449697827)
- [Your Cruise - RSS Reader](https://appshunter.io/ios/app/your-cruise-rss-reader/id6670787666)
- [AI Tone - Message Writer](https://appshunter.io/ios/app/ai-tone-message-writer/id6738033894)
- [StepOn - Daily Weighing](https://appshunter.io/ios/app/stepon-daily-weighing/id6759540928)

All apps by Kosuke Yamanaka: https://appshunter.io/developer/1690125217

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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 2026-05-19.*