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Simple Notes Sync vs WriteOn: Simple Notepad: catalog facts
Simple Notes Sync	WriteOn: Simple Notepad
Free Free and open source under the AGPL 3.0 licence.	Free Free and open source under the GPL 3.0 or later.
Android	Android
Works fully offline Sync to your own WebDAV server	Markdown formatting Local and WebDAV backup and restore
Android only Sync requires running your own server	Android only Deliberately simple, without advanced organization features
Downloadable app	Downloadable app
Open source	Open source
License: AGPL-3.0-only	License: GPL-3.0-or-later
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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