Cairn: Focus & Study Timer

Pomodoro deep work & habits

Free · In-App Purchases · Designed for iPad. Not verified for macOS.

Focus that leaves something behind. Finish a session and Cairn forges a one-of-a-kind keepsake you keep forever. Buy once — no ads, no subscription. Launch price on now. Focus that leaves something behind.Cairn is a calm Pomodoro and deep-work timer. Finish a focus session and it forges a small, one-of-a-kind keepsake — a piece of generative art that's yours to keep, forever.No streaks to guilt you. No trees that die. No ads, no subscription, no tracking. Buy it once.Plant a focus. Grow a garden of your work.Every completed session blooms into a unique keepsake and joins your terrarium — a quiet, growing record of the time you gave your attention. Each one is deterministic and permanent: the same focus always grows the same object, and it never withers.Why Cairn feels different• A keepsake, not a chore. Reward without the gamified guilt — nothing dies if you stop.• Buy once, keep forever. One purchase unlocks everything. No subscription, ever.• Private by design. 100% on-device. No account, no ads, no tracking, works offline.• Calm, not hustle. Built for deep work, study, and reading — not dopamine loops.Everything you'd want in a focus timer• Pomodoro and custom-length sessions for study, work, and reading• A living garden/terrarium of everything you've grown• A diary calendar and honest stats — hours, rhythm, materials• Home & Lock Screen widgets, Live Activity & Dynamic Island, Control Center• Apple Watch app with complications — start a focus from your wrist• Full iPhone + iPad, light & dark, and accessibility supportCairn Pro — one purchase, foreverUnlock every material, palette, and the full garden with a single buy-once purchase. No subscriptions, no upsells.Focus is fleeting. What you make of it doesn't have to be.

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The developer, Pham Van Hai, 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
    Pham Van Hai
    Size
    36.5 MB
    Category
    Productivity
    Compatibility
    Requires iOS 26.0 or later.
    • iPhone
      Requires iOS 26.0 or later.
    • iPad
      Requires iPadOS 26.0 or later.
    • Mac
      Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 26.0 or later.
    • Apple Watch
      Requires watchOS 26.0 or later.
    Languages
    English and 2 more
    • English, Japanese, Vietnamese
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    © 2026 Pham Van Hai
  • Privacy Policy

    • Supports

    • Family Sharing

      Some in-app purchases and subscriptions may be shareable with your family group when Family Sharing is enabled. Learn More

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