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EGroupware vs SOGo: catalog facts
EGroupware	SOGo
Freemium Free Community Edition; the EPL edition and cloud hosting are paid.	Free Free and open source; paid premium support is offered separately.
Web, Self-hosted	Web, Self-hosted
Wide feature set from email and calendar to CRM and helpdesk Can be self-hosted or used as a German-hosted cloud service	Webmail, calendars and contacts in one self-hosted server CalDAV, CardDAV and ActiveSync support for native and mobile clients
Some features are reserved for the paid EPL edition A large suite to set up and maintain on your own server	Needs existing mail and directory servers to integrate with Outlook support depends on a separate CalDAV synchronizer
Web application, Self-hosted, Hosted service	Self-hosted
Open source	Open source
License not stated	License: GPL-2.0-or-later / LGPL-2.0-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 2, 2026	Official website Full listing and sources Checked September 23, 2026

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