One-Line Diary – Mood Log
Capture your mood in one line
Free · Designed for iPad. Not verified for macOS.
One-Line Diary is a simple journaling app that lets you easily capture your daily thoughts and moments in just a few words.
With the calendar view, you can look back on past entries and quickly see how many posts you made on each day at a glance.
The built-in report feature helps you review and visualize your records, making it easy to notice changes in your feelings and habits over time.
Designed with a clean and distraction-free interface, the app lets you focus entirely on your thoughts without interruption.
Why not start recording small daily insights and emotional changes at your own pace?
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Minor updates have been made.
• Improved the reporting feature
The developer, Yuga Matsumi, 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.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Yuga Matsumi
- Size
- 20.6 MB
- Category
- Lifestyle
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- Copyright
- © 2026 matsumi studio