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Axichat vs Thunderbird: catalog facts
Axichat	Thunderbird
Free Free and open source under AGPL-3.0, including the @axi.im service.	Free Free forever, funded by donations.
Windows, macOS, Android, iOS, Self-hosted	Windows, macOS, Linux, Android
Email and XMPP chat in one conversational inbox Integrated calendar with tasks and reminders	Unified inbox across every account, or each account kept separate, your choice Mail, calendar, contacts and tasks in one application rather than four
Under active development, so things may break No Linux build yet	The interface carries a lot of history and can feel dense next to a webmail tab Major ESR releases have historically been disruptive for add-ons and settings
Downloadable app, Self-hosted, Hosted service	Downloadable app
Open source	Open source
License: AGPL-3.0-or-later	License: MPL-2.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 20, 2026

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