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Pegasus Mail vs eM Client: catalog facts
Pegasus Mail	eM Client
Free Free to use; the developer accepts donations.	Freemium Free licence for personal, non-commercial use with up to two accounts; Personal from…
Windows	Windows, macOS, Android, iOS
Free with no paid tier Decades of continuous development	Handles Gmail, Microsoft 365, Outlook, Exchange and plain IMAP without plugins Email, calendar, tasks, contacts, notes and chat in one polished window
Windows only Traditional interface and slow release pace	No Linux version The free licence is capped at two accounts and forbids any commercial use
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
No account needed	Account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 20, 2026

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