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Jotdown vs Flexcil: catalog facts
Jotdown	Flexcil
Free Free and open source under the GPL-3.0 licence.	Freemium Free to download, with free use available to schools on application.
Android	Android, iOS, Web
Reading, annotation and organisation work fully offline No account required	PDF reading and note taking side by side Gesture-based annotation suited to a stylus
Android only Documentation mainly in Portuguese	Designed mainly for tablets Homepage gives no details on paid features
Downloadable app	Downloadable app, Web application
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	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 23, 2026

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