Editions

Mark ships in two editions built from the same code:

• Mac App Store: reviewed by Apple, sandboxed, installed and updated through the App Store.
• Homebrew / direct download: the macOS build signed with a Developer ID and notarized by Apple, plus the Windows build. Updates through the in-app updater or brew upgrade --cask mark.

The editor is the same in both: rendering, themes, live reload, Split View, the copy formats, print and PDF export, Share, and diffs against a .before file.

What differs

	Homebrew / direct download	Mac App Store
The editor and everything not listed below	Yes	Yes
Share button (macOS share sheet)	Yes	Yes
Diff against a .before file	Yes	Yes
Pandoc export (DOCX, ODT, EPUB… when pandoc is installed)	Yes	No
Insert screenshot	Yes (macOS)	No
Set Mark as the default Markdown app	Yes (macOS)	No
Diff against the last git commit	Yes	No
Local live server for agents (localhost HTTP endpoint)	Yes	No
In-app updater	Yes	No, updates come from the App Store
Reviewed by Apple and sandboxed	No (notarized on macOS)	Yes
Windows builds	Yes	No

Why the difference?

The App Store sandbox does not let an app run other programs (git, pandoc, screencapture) or open a local server. Those features are left out of the App Store build rather than shown in a disabled state.

Installing

• Mac App Store: Mark on the Mac App Store
• Homebrew: brew tap xronocode/mark && brew install --cask mark
• Windows: the x64-setup.exe installer from GitHub Releases

See Installation for details.