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Evolution vs Microsoft Outlook: catalog facts
Evolution	Microsoft Outlook
Free Free and open source, part of the GNOME project.	Freemium Free app and account available; Microsoft 365 plans add paid features and Office apps.
Linux	Windows, macOS, Android, iOS, Web
Mail, calendar, contacts and tasks in one program Exchange Web Services plugin connects to Microsoft 365	Email, calendar and contacts for multiple accounts in one app Available on desktop, mobile and web
Linux only Heavier than a mail-only client, and slower to start	Closed source and tied to Microsoft services Some features, including Copilot, require a paid plan
Downloadable app	Downloadable app, Web application
Open source	Closed source
License: GPL-2.0-or-later and LGPL-2.1-or-later	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 23, 2026

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