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Foxmail vs The Bat!: catalog facts
Foxmail	The Bat!
Free Free to download.	Paid Commercial software from Ritlabs; prices are not listed on the product page.
Windows, macOS	Windows
Handles very large mailboxes Built-in notes synced with QQMail	Optional encryption of the local message base Blocks tracking pixels and malicious code in mail
Changelog gives little detail beyond bug fixes Note sync is tied to Tencent's QQMail	Windows only Commercial license required
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
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 23, 2026

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