Proton Calendar

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Proton Calendar is a safe calendar that automatically secures all your events with end-to-end encryption. Events received from people who use other calendars are also secured with zero-knowledge encryption.

✨ Free Features

  • • Secure calendar with end-to-end encryption
  • • Zero-knowledge encryption for events from other calendars

⚠️ Limitations

  • 1 Personal calendar. No sharing calendar via link.

🌐 Available On

Android iOS Web-based

🏷️ Category

Security Privacy

  • 📺 Contains Ads

    No

  • 📝 Signup Required

    Yes

  • 💳 Credit Card Required

    No