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Canary Mail vs Proton Mail: catalog facts
Canary Mail	Proton Mail
Paid Paid subscription, with a free trial or limited free tier.	Freemium Free accounts work in the mobile and web apps; the desktop apps are offered as a free…
Windows, macOS, Android, iOS	Windows, macOS, Linux, Android, iOS, Web
Built-in encryption support alongside AI-assisted email triage Available across Windows, Mac, iOS, and Android	End-to-end encrypted email by default Apps for iOS, Android, macOS, Windows, Linux and the web
Full feature set requires a paid subscription AI features depend on cloud processing rather than being fully local	Only works with a Proton account Desktop apps need a paid plan after the trial
Downloadable app	Downloadable app, Web application, Hosted service
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Account 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 September 23, 2026

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