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Zoho Calendar vs tine Groupware: catalog facts
Zoho Calendar	tine Groupware
Freemium Free to start, with paid Zoho plans for business features.	Free Open-source software; the research does not detail any paid offerings.
Web	Web, Self-hosted
Team calendars with availability checks Built-in appointment and resource booking	Email, calendar, contacts and tasks in one platform Resource planning for shared appointments
Hosted service, with data stored by Zoho Most useful inside the wider Zoho ecosystem	Website and documentation mostly in German Aimed at organisations rather than individual users
Web application	Self-hosted
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.