Onelog: Log Anything

Habit & Life Data Tracker

Only for iPhone

Free

iPhone

Log anything in one tap. Elegant, minimalist, deeply customizable. Your data stays on your iPhone: no account, no server. Export it anytime to your tools or your AI. Onelog is minimalist by design: one app to log anything in your life. It is not another habit app: no coach, no streak to protect, nobody babysitting you. Coffee. Mood. Pages read. Water. Steps. Migraines. The drink you skipped. If it happens, you can log it, in one tap. Your data stays on your iPhone. No account, no server, nowhere else. And when you want it, it's yours to export. LOG IT YOUR WAY • Yes or no. A “no” is an answer, not a failure. • Amounts. Decimals, your own units, an optional goal. • Text. One line about your day. LET YOUR IPHONE LOG THE REST • Weather, place, daylight and the moon, logged for you. • The day's photos, only if you allow it. • Apple Health: steps and workouts can log themselves. Your own taps always win. NO GUILT, BY DESIGN No red. No badges. No levels. No “you broke your streak.” Goals and streaks are optional. Take a break whenever you want: nothing breaks. YOUR LIFE, IN INK Every log has its own page: a plain sentence first, then the numbers. Calendars fill with ink, one day at a time. Light, dark and paper themes. EVERYWHERE ON YOUR IPHONE • Interactive widgets • Siri and Shortcuts: “Log coffee in Onelog” • Reminders in the tone you pick, from neutral to cheeky YOURS, AND OPEN • No account. No ads. No tracking. • Export to JSON, CSV or Markdown. • Copy for AI: paste a clean summary into your favorite assistant and ask what is really going on. • Webhooks for builders: every log, signed, sent to your own server. Onelog is free. Made by one person.

Ratings & Reviews

  • This app hasn’t received enough ratings or reviews to display an overview.

The developer, Alexandre Coulmy, 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, for example, based 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

    Seller
    Alexandre Coulmy
    Size
    8.5 MB
    Category
    Productivity
    Compatibility
    Requires iOS 26.0 or later.
    • iPhone
      Requires iOS 26.0 or later.
    • Apple Vision
      Requires visionOS 26.0 or later.
    Languages
    English and French
    Age Rating
    13+
    • 13+
    • Learn More
    • Infrequent
      Alcohol, Tobacco, Drug Use or References
    Copyright
    © 2026 Onelog
  • Developer Website
  • Privacy Policy