Kosshi Outliner

Name: Kosshi Outliner
Price: 24.99 USD

Place

#19 of 31

Chart

Score

6.3

The facts below are what the maker publishes about Kosshi Outliner, checked and dated. Our editors have not written about it yet.

Plans and prices

From Kosshi Outliner's own pricing page, checked 7 Oct 2026.

Plan	Price	What it gives you
Kosshi Outliner	$24.99, paid once	7-day free trial · Trial switches to read-only mode · App Store purchase unlocks all features · One-time purchase; no subscription

Each one read from Kosshi Outliner's own pages, with the date it was checked.

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.checked 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.checked 7 Oct 2026

Collaboration limit: Shared outlines and collaboration are not supported.checked 7 Oct 2026
Editing: The app supports Markdown formatting, checkboxes, keyboard shortcuts, and zooming into a row and its children.checked 7 Oct 2026
Files and export: Users can add images, PDFs, and videos to an outline and export as Markdown, OPML, or plain text.checked 7 Oct 2026
Integrations: Dated @tags can sync with Apple Reminders or Calendar; Kosshi also syncs outlines across Apple devices through iCloud CloudKit.checked 7 Oct 2026
Outline model: Everything goes into a single outline that users organize with indentation, row movement, collapsing, and search.checked 7 Oct 2026
Purpose: Kosshi is a personal outliner for gathering notes, thoughts, and tasks across projects.checked 7 Oct 2026
Scale: Kosshi says its rendering and data structures are designed to keep outlines usable beyond 100,000 rows.checked 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.checked 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.checked 7 Oct 2026
Support: Users can contact the developer about problems, and the site also provides a forum for release discussions and feedback.checked 7 Oct 2026

Headquarters: Japanchecked 28 Sep 2026
Maker: Kosshi is a solo project by Junichi Sato, who goes by Shirokuma.checked 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.checked 7 Oct 2026