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DankCalendar vs Era: catalog facts
DankCalendar	Era
Free Free and open source under the MIT license.	Free Free and open source under the GPL-3.0-or-later.
Linux	Linux
Combines local, Google, Microsoft, CalDAV, and iCloud calendars Runs as a daemon with a tray icon	Designed for the GNOME desktop Open source and available on Flathub
Linux desktop app	Young project with a short track record Linux only
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL-3.0-or-later
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 October 8, 2026	Official website Full listing and sources Checked October 1, 2026

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