Daily Journal: In One Line
Private Gratitude Mood Tracker
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Your whole day in one line. 100% private and fully on-device - no AI, no account, no cloud, no tracking. Just write your thoughts and watch the years fill in.
In One Line is the simplest way to keep a diary: write one line a day.
No blank pages, no pressure, no guilt - just a single sentence about your day. In under a minute, you're done.
And it's completely private. Your words, moods, and photos live only on your device. No account to create. Nothing syncs to a cloud. Nothing is uploaded. And there is absolutely no AI reading your life. What you write stays yours - always.
WHY ONE LINE
A blank journal is intimidating. One line is not. A single sentence a day is small enough to keep up forever - and looking back, those lines become the most honest record of your life you'll ever own.
PRIVATE BY DESIGN
• Everything stays on your iPhone - works fully offline
• No sign-up, no email, no account required
• No cloud, no servers, no tracking, no ads
• No AI — your entries are never analyzed or sent anywhere
• Lock the app with Face ID, Touch ID, or a passcode
WRITE IN SECONDS
• Capture your day in one line - or write more when you feel like it
• Speak instead of type with voice entry
• Add a mood to remember how the day really felt
• Attach photos to bring a memory back to life
• A gentle daily reminder so you never miss a day
LOOK BACK
• Browse your entries on a clean calendar and timeline
• "On this day" resurfaces what you wrote in past years
• Build a streak that's genuinely easy to keep
• A calm, distraction-free, paper-inspired design
YOURS TO KEEP
• Export your diary whenever you like - your data is never locked in
• Add it to your Home Screen with a widget
• Optional Sign in with Apple if you ever want it - never required
One line a day. A whole life, remembered.
Download In One Line and write today's line.
Bug fixes & performance improvements.
The developer, Hitesh pankaj Nambiar, 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 Linked to You
The following data may be collected and linked to your identity:
- Contact Info
- User Content
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Hitesh pankaj Nambiar
- Size
- 6.9 MB
- Category
- Lifestyle
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
English and 6 more
- English, French, German, Japanese, Portuguese, Simplified Chinese, Spanish
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- Copyright
- © 2026 One Line Diary
