European Alternatives to Google Calendar
Google Calendar is a calendar service from the US-American company Google. This pages lists European Google Calendar alternatives from companies based in a member state of the European Union (EU) or the European Free Trade Association (EFTA).
Proton Calendar
Proton Calendar is a Swiss encrypted calendar service with zero-knowledge encryption, ensuring only you can read your events and appointments.
Tuta Calendar
Tuta Calendar is the German encrypted calendar – end-to-end encrypted, part of Tuta secure suite, privacy-first.
Cal.com
Cal.com is the open-source scheduling – Calendly alternative, self-hosted option, privacy-first.
fruux
fruux is the German CalDAV/CardDAV service – calendar and contacts sync, open standards, privacy-friendly.