Proton has successfully delivered on its promise to bring encrypted email out of the browser and onto the desktop. If you’re already paying for Proton, downloading the Windows app is a no-brainer. For free users, it’s yet another reason to consider upgrading.
High CPU usage during sync. Fix: This usually happens on first sync of a large mailbox (over 20,000 emails). Let it complete; subsequent syncs are incremental and lightweight. protonmail app for windows
By moving outside the browser, the desktop app offers specific security enhancements that a standard web tab cannot: Proton has successfully delivered on its promise to