Proton Calendar
An end-to-end encrypted calendar from Proton in Geneva, Switzerland.
Proton Calendar is an encrypted calendar from Proton AG, the privacy company headquartered in Geneva, Switzerland. It is built for people who already use Proton Mail or who want a calendar that keeps event details private by design.
Event titles, descriptions, locations and participants are end-to-end encrypted, with web and mobile apps, sharing, invitations and integration with Proton Mail, and the apps are open source. Protected by Swiss privacy law and zero-knowledge encryption, Proton Calendar is a privacy-first European alternative to Google Calendar.
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