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Apostrophe vs Scratchmark: catalog facts
Apostrophe	Scratchmark
Free Free and open source under the GPL-3.0-or-later licence.	Free Free and open source under the GPL-3.0.
Linux	Linux
Focus mode for distraction-free writing Live rendered preview	Distraction-free Markdown writing Plain Markdown files organised in folders
Linux only Edits single files rather than managing a notes library	Linux only Small project with a single main developer
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: GPL-3.0-or-later
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

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.