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

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