Google Calendar is a time-management and scheduling calendar service developed by Google.
Proton Calendar is a privacy-focused calendar application with end-to-end encryption.
fruux offers synchronization solutions for contacts, calendars and tasks.
Open-source, self-hostable content collaboration platform. File sync, chat, calendar, and more.
EteSync is an end-to-end encrypted calendar and contacts sync solution focused on privacy.
Know of another great European alternative we haven't listed? Let us know!
