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Zoho Workplace vs SOGo: catalog facts
Zoho Workplace	SOGo
Freemium Listed as freemium, with paid plans for larger teams and more features.	Free Free and open source; paid premium support is offered separately.
Web	Web, Self-hosted
Mail, chat, meetings and office editors in one platform Includes WorkDrive for shared files	Webmail, calendars and contacts in one self-hosted server CalDAV, CardDAV and ActiveSync support for native and mobile clients
Hosted only, with data on Zoho's servers Geared towards business teams rather than individuals	Needs existing mail and directory servers to integrate with Outlook support depends on a separate CalDAV synchronizer
Web application, Hosted service	Self-hosted
Closed source	Open source
License not stated	License: GPL-2.0-or-later / LGPL-2.0-or-later
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 23, 2026	Official website Full listing and sources Checked September 23, 2026

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