5 Best European Google Calendar Alternatives in 2026
Sovereignty-first software picks, all built in Europe — hand-picked to replace Google Calendar.
Our top pick this year is Proton Calendar — but every option on this list is European-owned, GDPR-native, and production-ready. Worth a closer look: fruux, Calendar.online, SyncDate, Tuta Calendar.
Most picks fall under Office & Collaboration. Jump into any of those categories if you want a wider shortlist beyond this list.
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Keep your schedule private with an end-to-end encrypted calendar. Benefit from Swiss privacy laws and a user-first approach. Manage events securely.
European office & collaboration alternative based in Switzerland.
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European office & collaboration alternative based in Germany.
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Organize your schedule with robust, quantum-safe encryption. Keep events private, enjoy intuitive planning, and receive secure notifications. Your data, your rules.
