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Evolution vs Balsa: catalog facts
Evolution	Balsa
Free Free and open source, part of the GNOME project.	Free Free and open source under the GPL.
Linux	Linux
Mail, calendar, contacts and tasks in one program Exchange Web Services plugin connects to Microsoft 365	Lightweight native GTK interface Fits in with the GNOME desktop
Linux only Heavier than a mail-only client, and slower to start	Linux only Smaller feature set than full PIM suites
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0-or-later and LGPL-2.1-or-later	License: GPL-2.0-or-later
No account needed	No account 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 24, 2026

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