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Mailbird vs Foxmail: catalog facts
Mailbird	Foxmail
Paid Paid desktop app, sold as a one-time or subscription license.	Free Free to download.
Windows, macOS	Windows, macOS
Unifies multiple email accounts and providers into one inbox App integrations reduce the need to switch to separate tools	Handles very large mailboxes Built-in notes synced with QQMail
Windows and macOS only Full feature set requires a paid license	Changelog gives little detail beyond bug fixes Note sync is tied to Tencent's QQMail
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 1, 2026

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