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Iotas vs Quillpad: catalog facts
Iotas	Quillpad
Free Free and open source under the GPL-3.0 or later.	Free Free and open source.
Linux	Android
Fast Nextcloud Notes sync with offline editing Optional Markdown with a formatted view and task lists	Markdown formatting in notes Task lists alongside notes
Notes are stored in SQLite, not plain files Export to PDF, ODT and HTML is still in preview	Android only Sync depends on having a Nextcloud server
Downloadable app	Downloadable app
Open source	Open 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 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.