This page's audience our own tag's counts — open to see them

Period

–Visits

–Page views

–Clicks to vendors

–Time on page

–Reading now

Clicks to vendors, by tool

Top countries

Devices

– · visits, page views and clicks counted by our own tag, which counts more than our checked analytics; every figure rounded down · how we count

Kosshi Outliner

Paid#14 of 30 in Outliner Software

Kosshi Outliner: A capable offline Markdown outliner for Apple users, without collaboration features. Ranked #14 of 30 in Outliner Software by our editors (7.7/10); pricing: 7-day trial; best for apple users wanting rich offline outlines.

7.7/10Editor score

Try Kosshi Outliner

Kosshi Outliner7.7 Try Kosshi Outliner

At a glance

Editor score
7.7 / 10
Pricing
7-day trial
Best for
Apple users wanting rich offline outlines
Free plan
No
Paid from
$24.99 one-time
App platforms
macOS, iOS (iPhone, iPad)
Facts checked
20 Sep 2026

Where it wins
- Detailed hierarchical outlines with collapse, zoom, search, and filters
- Markdown, internal links, tags, media, backups, and multiple export formats
- One-time purchase with optional iCloud sync across Apple devices
Where it doesn't
- No collaboration features for shared outlining or editing
- Available only on macOS and iOS devices
- Seven-day trial becomes read-only after the trial period

Our verdict on Kosshi Outliner

Kosshi Outliner is a native outlining app for macOS, iPhone, and iPad. It is designed for writers, researchers, planners, and other Apple users who want to organize material in a single hierarchical outline. Rows can be indented, moved, collapsed, or opened in a focused view with breadcrumbs. Offline access is supported, while optional iCloud sync keeps outlines available across supported Apple devices.

The app’s standout feature is the depth of its outline and document tools. Markdown support includes links, checkboxes, tables, code blocks, and math, while internal links connect outline rows. Tags, bookmarks, saved searches, Boolean filters, and text replacement support larger working documents. Images, PDFs, videos, and handwritten sketches can be included, and outlines can be imported or exported in Markdown, Rich Text, TextBundle, plain text, and OPML. Automatic backups and restore add protection for locally stored work.

Kosshi Outliner has one paid plan: Kosshi Outliner costs $24.99 as a one-time purchase and provides full feature access without a subscription. The published offering includes a seven-day free trial; afterward, the app becomes read-only. Apple Reminders, Apple Calendar, and iCloud provide useful ecosystem connections, but the product remains focused on Apple platforms and does not support collaboration. Choose it for detailed personal outlining, offline work, and Markdown-based organization across Apple devices. Choose an alternative if shared editing, broader platform coverage, or team workflows are central requirements.

Your product? Our editors can test Kosshi Outliner in depth and publish a review, labelled as paid · from $149/mo →

Kosshi Outliner pricing

Plans 7-day trialPaid No free plan — trial or paid only. Prices checked 20 Sep 2026.

See plans on kosshi.app

All 1 Kosshi Outliner plans and prices →

Kosshi Outliner fact sheet

Free plan	No
Paid from	$24.99 one-time
App platforms	macOS, iOS (iPhone, iPad)
Export formats	Markdown, Rich Text, TextBundle, Plain Text, OPML
Offline access	Yes
Markdown support	Yes
Real-time collaboration	No
Backlinks	Yes
Navigation modes	collapse, zoom, search, filters, bookmarks, saved searches
Free trial	7 days
Deployment	Desktop, Mobile
Platforms	macOS, iOS
Support	Email, Community, Docs
Built for	Solo, Small business (editorial estimate)
Integrations	3 integrations: iCloud, Apple Reminders, Apple Calendar
Pricing	7-day trial (source)
Website	kosshi.app
Facts checked	20 Sep 2026

Kosshi Outliner integrations

Kosshi Outliner lists 3 integrations on its own site.

iCloud
Apple Reminders
Apple Calendar

Alternatives to Kosshi Outliner

See all Kosshi Outliner alternatives →

Used Kosshi Outliner? Be the first to review it

The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used Kosshi Outliner for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.

Write a reviewTwo minutes · verified accounts only · read by an editor before it appears

Reviews come only from verified accounts. Sign in or create an account first — your e-mail is never shown.

Title

Your review

0 characters · at least 80, up to 3,000

Pros (optional · one per line)

Cons (optional · one per line)

Your name (shown with your review)

Role (optional)

Company (optional)

How long have you used it?

I've used Kosshi Outliner myself and this is my honest opinion — nobody paid or asked me to write it.

Posted from your verified account. Reviews appear after an editor reads them, usually within two working days.

Featured on iTechGuides

Kosshi Outliner is listed in our Outliner Software directory. Add the badge to your site — it links back to this page.

<a href="https://www.itechguides.com/products/kosshi-outliner/"><img src="https://www.itechguides.com/best/badge/kosshi-outliner.svg" alt="Featured on iTechGuides" width="230" height="46"></a>

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Last updated 7 Oct 2026 · How we research and update