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eM Client vs Axichat: catalog facts
eM Client	Axichat
Freemium Free licence for personal, non-commercial use with up to two accounts; Personal from…	Free Free and open source under AGPL-3.0, including the @axi.im service.
Windows, macOS, Android, iOS	Windows, macOS, Android, iOS, Self-hosted
Handles Gmail, Microsoft 365, Outlook, Exchange and plain IMAP without plugins Email, calendar, tasks, contacts, notes and chat in one polished window	Email and XMPP chat in one conversational inbox Integrated calendar with tasks and reminders
No Linux version The free licence is capped at two accounts and forbids any commercial use	Under active development, so things may break No Linux build yet
Downloadable app	Downloadable app, Self-hosted, Hosted service
Closed source	Open source
License not stated	License: AGPL-3.0-or-later
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 20, 2026	Official website Full listing and sources Checked October 2, 2026

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