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Apostrophe vs MarkEdit: catalog facts
Apostrophe	MarkEdit
Free Free and open source under the GPL-3.0-or-later licence.	Free Free and open source under the MIT licence.
Linux	macOS
Focus mode for distraction-free writing Live rendered preview	About 4 MB installed and fast on very large files Strict GFM support with no invented syntax
Linux only Edits single files rather than managing a notes library	macOS only Focused on Markdown rather than general note organisation
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: MIT
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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