Protonmail App For Windows May 2026

But is it just a browser wrapper, or a genuine upgrade? This article explores every feature, installation step, security nuance, and performance benchmark of the ProtonMail Windows app. The ProtonMail desktop app is a standalone client that allows you to manage your encrypted email inbox without opening a web browser. It is available exclusively for Proton paid subscribers (Mail Plus, Proton Unlimited, or Family plans). Free users must continue using the web client or mobile apps.

App fails to sync offline changes. Fix: Clear the cache (Settings → Offline → Clear cache) and restart. Ensure your system clock is accurate (NTP-synced). protonmail app for windows

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