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Zoho Calendar vs EGroupware: catalog facts
Zoho Calendar	EGroupware
Freemium Free to start, with paid Zoho plans for business features.	Freemium Free Community Edition; the EPL edition and cloud hosting are paid.
Web	Web, Self-hosted
Team calendars with availability checks Built-in appointment and resource booking	Wide feature set from email and calendar to CRM and helpdesk Can be self-hosted or used as a German-hosted cloud service
Hosted service, with data stored by Zoho Most useful inside the wider Zoho ecosystem	Some features are reserved for the paid EPL edition A large suite to set up and maintain on your own server
Web application	Web application, Self-hosted, Hosted service
Closed source	Open source
License not stated	License not stated
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 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.