Proton Mail provides secure email services with end-to-end encryption, ensuring data protection. Swiss-based and outside US jurisdiction, it offers a free version to champion privacy as a human right. Fully accessible on any device.
Cost / License
- Freemium
- Open Source (GPL-3.0)
Application types
Platforms
- Mac
- Windows
- Linux
- Online
- Android
- iPhone
- iPad
- Tor
- Flathub
- Snapcraft



































































Protonmail is a closed platform, and have no similarity between Mailfence (except in a sense that they both use OpenPGP as their end-to-end encryption technology).