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Cairn — Markdown Tasks

Cairn — Markdown Tasks

Offline planner for your vault

1 ratings
1 review
🔧 Utilities
📊 Productivity
Free

Details

  • Released
  • Updated
  • July 17, 2026
  • September 25, 2026

Developer

Young Hun JEONG
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About

Manage tasks and notes directly within your existing Markdown files. This app offers focused views, quick capture, and robust task management features, all while keeping your data private and locally stored. It integrates seamlessly with Obsidian and other file sync services.

✓Native Markdown task and note management
✓Works with Obsidian vaults or any folder
✓Quick capture with date, tag, and priority parsing
✓Multiple task views (Today, Upcoming, Inbox, Pool)
✓Full support for sub-tasks and recurring tasks
✓Local reminders and Live Activity integration
✓Data stays local, no cloud sync required
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What's New in Cairn

1.3.3

September 25, 2026

More reliable tasks, habits, and Obsidian compatibility. • Keep Obsidian Tasks dates and repeating rules readable when Cairn adds habit, reminder, or Pool markers • Repair older marker placement from Settings → Diagnostics → Obsidian Tasks compatibility, with Undo • Preserve the right dates when moving tasks to Today or Tomorrow, and fix overdue task actions in Weekly Review • Keep habit widgets connected after the first check-in • Make disabled reminders and notification permission issues easier to identify and resolve • Show task tags in a consistent order with a clearer overflow count

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User reviews

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Awesome app. But bug

I do not see a place to select the folder in which the new todos are written to. I first selected the folder that I thought was going to be the folder that the tasks were created, but I realized that need to be my vault root. It scrapes all the tasks from across my vault, but I get an error saying that path resolves outside the selected vault.

Thanks
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burnsac100burnsac100

Response from developer

Thanks for the kind review and for reporting this. We’ve added an explicit capture destination setting in the current version (1.1.1): open Settings → Capture → Capture Destination, then choose Monthly Inbox, A Specific File, or Today’s Daily Note. For Obsidian, select the vault root first and choose a destination inside that vault. This should also resolve the “path resolves outside the selected vault” error. If it still happens after updating, please contact us through the Support link so we can investigate.

FAQ

Does Cairn have ads?

Cairn is completely ad-free, allowing for an uninterrupted user experience. This means you won't encounter any advertisements while managing your tasks and notes.

What devices does Cairn support?

Cairn is available on iPhone and iPad, ensuring a consistent experience across your Apple mobile devices. Its design is optimized for both form factors.

How often is Cairn updated?

The latest version, 1.3.0, was released on September 11, 2026, indicating active development and regular updates. This frequency suggests a commitment to improving features and addressing user feedback.

Is Cairn suitable for children?

Cairn has an age rating of 4+, making it appropriate for users of all ages. The app's focus on productivity and note-taking does not contain any content unsuitable for younger audiences.

What is the pricing for Cairn?

Cairn is available for free, with no cost to download or use its core features. This makes it an accessible option for anyone looking to manage their Markdown tasks.

How does Cairn handle user data privacy?

Cairn prioritizes user privacy by keeping all tasks and notes within your own files. It does not require an account, sign-up, or its own cloud database, ensuring your data remains under your control.

Can Cairn integrate with other apps?

Cairn works alongside Obsidian, iCloud Drive, Git, or any other sync service you use. It also offers optional integration to mirror dated tasks into your chosen calendar.

What makes Cairn different from other task apps?

Cairn's unique selling proposition is its direct interaction with your existing Markdown files, eliminating the need for proprietary formats or cloud storage. This ensures your data portability and longevity.