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Simplenote vs tomboy-ng: catalog facts
Simplenote	tomboy-ng
Free The software is free under its open-source licence. Hosting, hardware and external…	Free Free and open source.
Windows, macOS, Linux, Android	Windows, macOS, Linux
Syncing is free and unlimited across every platform, notes keep a version history, and the whole thing stays…	Runs on Linux, Windows and macOS Sync between machines or to a private GitHub repository
There is no encryption of note contents on Automattic's servers, and no attachments, folders or rich formatting.	No dedicated mobile app; phone access is through a browser via GitHub Rich text rather than Markdown
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 1, 2026

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