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Apostrophe vs Markdown Monster: catalog facts
Apostrophe	Markdown Monster
Free Free and open source under the GPL-3.0-or-later licence.	Paid Commercial software with a free trial available.
Linux	Windows
Focus mode for distraction-free writing Live rendered preview	Synced live preview that follows the cursor and scroll position Two-way table editor and image paste from the clipboard
Linux only Edits single files rather than managing a notes library	Windows only Paid licence after the trial
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0-or-later	License not stated
No account needed	Not stated if an account is 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.