European calendar apps
Keep your schedule and address book away from surveillance-based platforms.
Your calendar and contacts say a lot about your life. They show who you meet, when, and where. European calendar and contact apps keep that information in Europe, under EU law. Many come from the same companies that make private email, like Proton and Tuta. Some encrypt your events, so the provider cannot read them. You can still sync everything to your phone and computer in the normal way.
Carefully selected European alternatives, some links may earn us a small commission.
Ad-free, green-powered email from Berlin for just €1/month. Independently run, no logs, regularly audited.
Replaces: Gmail , Yahoo Mail , Outlook , Vk Mail
German end-to-end encrypted calendar by Tutao GmbH, tightly integrated with Tuta Mail. All calendar data is encrypted on German servers using post-quantum TutaCrypt encryption. Standalone calendar app launched in 2024. Open source, no ads, no tracking.
Replaces: Google Calendar , Apple Calendar , Outlook
Belgian encrypted email suite with calendars, contacts, and documents. No ads, no tracking, protected by Belgian privacy law.
Replaces: Gmail , Outlook , Yahoo Mail , Vk Mail
A privacy-first email and groupware service from Berlin, run by long-time Linux specialists Heinlein Support. Encrypted mailboxes, calendars, contacts, and an online office - all hosted in certified German data centres and powered by green electricity, with no ads and no tracking.
A fully open-source email and collaboration suite hosted in Switzerland. Email, calendars, contacts, tasks, file storage, and collaborative editing - all built on free software and operated under strict Swiss privacy law, with no ads and no tracking.
Swiss end-to-end encrypted calendar by Proton AG. All event details (titles, descriptions, locations, attendees) are encrypted so even Proton cannot read them. ISO 27001 certified, independently audited annually by Securitum, own infrastructure in Switzerland and Germany.
Replaces: Google Calendar , Apple Calendar , Outlook
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Switching everything overnight is not realistic. Start where it matters most: your email, your cloud storage, your business tools. Replace one thing at a time.
The European Alternative already exists.
Pick Europe.