Proton Calendar
Encrypted calendar integrated with Proton Mail. The natural Google Calendar replacement.
Description
Proton Calendar encrypts all your events end-to-end. It integrates natively with Proton Mail: invitations arrive in your inbox, reminders follow. The interface is clean and efficient. The free plan includes one calendar, the paid plan unlocks several plus sharing. It's the most direct Google Calendar replacement for Proton users.
Strengths
- Even the provider can't read your data
- Integrated with Proton Mail
- Simple and clean interface
Limitations
- Fewer features than Google Calendar
- No CalDAV (limited sync)
- Dependent on Proton ecosystem
Recommended for
- Proton Mail users
- Encrypted personal calendar
Compared to alternatives
Proton Calendar is the natural choice for Proton Mail users. Nextcloud Calendar is more flexible but requires a server. EteSync encrypts everything but is more niche.