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Diarium vs RedNotebook: catalog facts
Diarium	RedNotebook
Freemium Free to start; Diarium Pro is a one-time purchase per platform.	Free The open-source software is available without a license fee. Hosting, hardware and…
Windows, macOS, Android, iOS	Windows, Linux
No account needed to start Sync through your own OneDrive, Google Drive, Dropbox, iCloud or WebDAV	Supports tags, templates, images and document exports.
Pro must be bought separately on each platform Closed source	It is a local journal rather than a collaborative workspace.
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-2.0
No account 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 24, 2026	Official website Full listing and sources Checked September 22, 2026

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