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Convey vs Betterbird: catalog facts
Convey	Betterbird
Free Free and open source under the LGPL 2.1 or later.	Free Free and open source, funded by donations.
Linux	Windows, macOS, Linux
Conversation-centred view of email Made for the GNOME desktop	Fixes and features Thunderbird has not shipped, listed openly in a comparison table Installs next to Thunderbird and runs on the same profile, so switching back is trivial
Very new project, started in 2026 Feature set is not documented in detail	A small volunteer project riding on someone else’s release train The Mac build ships in English only and needs a language pack for anything else
Downloadable app	Downloadable app
Open source	Open source
License: LGPL-2.1-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 1, 2026	Official website Full listing and sources Checked September 20, 2026

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