Kosshi Outliner is made and published by Junichi Sato. AppBrain is an independent app data site and isn't affiliated with Junichi Sato. The app name, icon, screenshots and description belong to Junichi Sato and are shown as published on the App Store.

About Kosshi Outliner

Kosshi Outliner is a productivity app developed by Junichi Sato.

What is the rating of Kosshi Outliner?

Kosshi Outliner is rated 5.00 out of 5 stars, based on 4 ratings.

Is Kosshi Outliner free?

Kosshi Outliner is free. The app size is 28.85 MB. The latest version available is 1.21.0. The last update was on October 4, 2026.

What are the requirements for Kosshi Outliner?

The app has a content rating of Everyone. The app has been available on the App Store since April 2026.

Description by Junichi Sato (from the App Store)

Kosshi is a fast, native outliner. Simple and smooth on large outlines. Available on Mac, iPhone, and iPad — one purchase covers all three.

Screenshots

Screenshots by Junichi Sato, from the the App Store listing

5.00 · 4 reviews

Official page on the App Store

Alternatives to Kosshi Outliner

Changelog of Kosshi Outliner

No changelog data

Developer information for Junichi Sato

Junichi Sato

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App Store Rankings for Kosshi Outliner

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Technologies used by Kosshi Outliner

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Kosshi Outliner