Thirty or Nothing

Write in a 30-minute window

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

【Important Notice】 Thirty or Nothing is not a diary you can write in anytime. 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/

Ratings & Reviews

  • This app has not received enough ratings or reviews to display an overview.

The developer, Kosuke Yamanaka, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary based, for example, on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Provider
    • Kosuke Yamanaka
    Size
    • 102.3 MB
    Category
    • Lifestyle
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English and Japanese
    Age Rating
    4+
    Copyright
    • © 2024 COB
  • Privacy Policy

    • More by Kosuke Yamanaka

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