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On the recordRead 7 Oct 202615 facts
Kosshi Outliner
Japan
Plans and prices
Kosshi Outliner
$24.99one-time
7-day free trial · Trial switches to read-only mode · App Store purchase unlocks all features
Read 7 Oct 2026 · kosshi.app
On the record
- App privacy
- The app does not collect analytics or usage data, and the developer says it does not collect, transmit, or access users' app data.kosshi.app · read 7 Oct 2026
- Collaboration limit
- Shared outlines and collaboration are not supported.kosshi.app · read 7 Oct 2026
- Editing
- The app supports Markdown formatting, checkboxes, keyboard shortcuts, and zooming into a row and its children.kosshi.app · read 7 Oct 2026
- Files and export
- Users can add images, PDFs, and videos to an outline and export as Markdown, OPML, or plain text.kosshi.app · read 7 Oct 2026
- Integrations
- Dated @tags can sync with Apple Reminders or Calendar; Kosshi also syncs outlines across Apple devices through iCloud CloudKit.kosshi.app · read 7 Oct 2026
- Maker
- Kosshi is a solo project by Junichi Sato, who goes by Shirokuma.kosshi.app · read 7 Oct 2026
- Outline model
- Everything goes into a single outline that users organize with indentation, row movement, collapsing, and search.kosshi.app · read 7 Oct 2026
- Platform limit
- Kosshi runs on macOS and iOS, and the FAQ says there is no Windows or Android version planned at this time.kosshi.app · read 7 Oct 2026
- Purpose
- Kosshi is a personal outliner for gathering notes, thoughts, and tasks across projects.kosshi.app · read 7 Oct 2026
- Scale
- Kosshi says its rendering and data structures are designed to keep outlines usable beyond 100,000 rows.kosshi.app · read 7 Oct 2026
- Security
- The developer says it has no server-side access to users' private CloudKit records and does not currently support end-to-end encryption through Advanced Data Protection.kosshi.app · read 7 Oct 2026
- Storage
- Outline data is stored in a local SQLite database on each device, with optional sync through a private CloudKit database in the user's iCloud account.kosshi.app · read 7 Oct 2026
- Support
- Users can contact the developer about problems, and the site also provides a forum for release discussions and feedback.kosshi.app · read 7 Oct 2026
- Trial limit
- After the seven-day trial, the app switches to read-only mode until a one-time purchase unlocks its features.kosshi.app · read 7 Oct 2026
