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Screenshots

  • Dayline - One Line a Day Diary screenshot 1
  • Dayline - One Line a Day Diary screenshot 2
  • Dayline - One Line a Day Diary screenshot 3
  • Dayline - One Line a Day Diary screenshot 4

About Dayline - One Line a Day Diary

Most diary apps ask too much. An account. A cloud backup. Twenty minutes of your evening. Dayline asks for one line. Open the app, write a single sentence about today, and close it. Five seconds. That's the whole habit. And because it's only one line, you'll actually keep doing it — day after day, until something remarkable happens: "one year ago today" starts showing up, and your past self begins talking to you. YOUR DIARY NEVER LEAVES YOUR PHONE • No account, no sign-up, no cloud • Everything is stored only on your device • Lock it with Face ID • Export to CSV or text anytime — your words are yours A HABIT THAT KEEPS ITSELF ALIVE • Streak counter for consecutive days • A gentle daily reminder at the time you choose • Home Screen and Lock Screen widgets — write without even opening the app MEMORIES, THE HEART OF DAYLINE • See what you wrote one year, one month, and one week ago — every single day • Browse your past in a calendar or a card timeline DESIGNED LIKE PAPER, NOT LIKE AN APP • Warm, ink-on-paper design in light and dark • Choose the paper tone you write on: Paper, Butter, Blush, or Sage Dayline is free, supported by small ads. Extra paper tones can be unlocked by choosing to watch an ad — never required. Start tonight. One line is enough.

App privacy

The developer, MunKyeong Yang, reported these privacy practices to Apple.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Identifiers: Device ID
  • Usage Data: Advertising Data

Data Linked to You

The following data, which may be collected and linked to your identity, may be used for the following purposes:

  • Location: Coarse Location
  • Identifiers: Device ID
  • Usage Data: Product Interaction, Advertising Data

Used for: Third-Party Advertising, Analytics

Data Not Linked to You

The following data, which may be collected but is not linked to your identity, may be used for the following purposes:

  • Diagnostics: Crash Data, Performance Data

Used for: Analytics

Alternatives to Dayline - One Line a Day Diary

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Dayline - One Line a Day Diary vs. alternatives
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Dayline - One Line a Day Diary – Free August 24, 2026
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