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Mailbird vs eM Client: catalog facts
Mailbird	eM Client
Paid Paid desktop app, sold as a one-time or subscription license.	Freemium Free licence for personal, non-commercial use with up to two accounts; Personal from…
Windows, macOS	Windows, macOS, Android, iOS
Unifies multiple email accounts and providers into one inbox App integrations reduce the need to switch to separate tools	Handles Gmail, Microsoft 365, Outlook, Exchange and plain IMAP without plugins Email, calendar, tasks, contacts, notes and chat in one polished window
Windows and macOS only Full feature set requires a paid license	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
Not stated if an account is needed	Account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 20, 2026

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