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Todosian vs ForgetMeNot: catalog facts
Todosian	ForgetMeNot
Free Free and open source under the Apache-2.0 licence.	Free Free and open source under GPL-3.0.
Android	Android
Works directly on existing Markdown files No account or database import	Integrates with an Obsidian vault Lightweight and simple
No built-in sync, so a separate sync tool is needed Android only	Very new project with few releases Little documentation
Downloadable app	Downloadable app
Open source	Open source
License: Apache-2.0	License: GPL-3.0-only
No account needed	No account 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 October 2, 2026

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