Betterbird vs Becky! Internet Mail: catalog facts
 Betterbird |  Becky! Internet Mail |
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Free Free and open source, funded by donations. |
Paid Shareware that requires a paid licence after evaluation. |
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Windows, macOS, Linux |
Windows |
- 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
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- Small, fast native Windows program
- Multiple mailboxes with separate profiles
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- 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
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- Windows only
- HTML mail relies on an Internet Explorer component
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Downloadable app |
Downloadable app |
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Open source |
Closed source |
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License: MPL-2.0 |
License not stated |
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No account needed |
No account needed |
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Works offline |
Works offline |
Checked September 20, 2026 | Checked October 2, 2026 |
Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.
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