Cairn - 차곡차곡
Stack today's tasks, calmly
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
Cairn (차곡차곡) is a calm, anonymous-first todo app — every core feature works without an account.
Like the small stones stacked into a cairn on a quiet trail, line up today's tasks one by one with clarity.
■ Core features
- Anonymous by default: no sign-up, no transmission. All data stays on your device.
- Inline markers: type @, #, !, * to set date, time, importance, and repeat in one line. e.g. "@tomorrow #3pm meeting", "*every-monday run".
- Two-way swipe: left for reschedule / favorite / repeat. Right for duplicate / move group / delete.
- Groups and color labels: organize by work, personal, fitness — at a glance.
- Notifications with quiet hours: push reminders that auto-defer to the next morning during quiet hours.
- Stats dashboard: weekly / monthly / yearly completion, 14-day sparkline, average completion time.
- Backup & restore: JSON / CSV / Markdown export and import. Move devices safely.
- Dark mode and three themes (Tica, Tally, Nudge).
- English / Korean auto-detected.
■ Tracks
- Anonymous (default): full core, on-device only.
- Pro: ad-free — one-time purchase, yours forever.
■ What we don't collect
No location, contacts, photos, microphone, camera, or health data.
In anonymous mode, not a single byte leaves your device.
■ About
Sobok — building small tools that add quiet order to daily life.
Contact: admin@sobok.kr
Privacy / Terms: https://sobok.kr/carin/legal/terms
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Meet your Weekly Supporter.
Every Sunday, AI helps you wrap up the past week — it reschedules what slipped into next week, eases overloaded days, and lets you add new tasks right in the chat.
Included with your Cairn Cloud subscription.
The developer, Heajung Yoo, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Contact Info
- User Content
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Heajung Yoo
- Size
- 42.9 MB
- Category
- Productivity
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later. - Apple Watch
Requires watchOS 10.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Cairn Pro - Ad-free forever $0.99
- Cairn Pro yearly $12.99
- Cairn Pro Monthly $1.99
- Copyright
- © 2026 Sobok
