proton.me/mail/download
| Metric | Web Version (Chrome) | Windows App | |--------|----------------------|--------------| | RAM idle | ~180MB | ~220MB | | RAM with large mailbox | ~350MB | ~310MB | | CPU background sync | 0-1% | 0-2% | | Launch time (cold) | 2.1s (browser first) | 1.3s | | Search speed (10k emails) | 1.2s | 0.9s | protonmail app for windows
The officially launched in March 2024, marking a significant evolution from a browser-reliant service to a dedicated desktop experience . Built to provide a fast, secure, and distraction-free environment, the app integrates email and calendar into a single interface while maintaining the Swiss-based company's signature end-to-end encryption. Key Features of the Windows App proton
While anyone can download the installer, full access is primarily a premium feature: Download the Proton Mail App for iOS, Android & Desktop and distraction-free environment