Calendar
A modern Material 3 Expressive calendar for Android. Reads, writes, and reminds — on top of the system calendar, with zero network access.
Fossify Calendar from the family of forked FOSS apps from the discontinued SimpleMobileTools. Simple, customizable, includes widgets. Note that CalDAV support is currently limited (see #921
Offline-first Android calendar that syncs with iCloud, CalDAV and device calendars. No account, no telemetry; credentials are stored in the Android Keystore. Events are not end-to-end encrypted, so sync security depends on your provider.
Calendar app for the self-hosted Nextcloud platform. Uses CalDAV for sync across devices. No E2E encryption support.
The calendar app from the Proton suite. End-to-end encrypted. Supports ICS (not encrypted), colours, recurring events, mail integration, notifications and multiple time zones.
Objective of this page
Find the best free, open source, E2E encrypted and private alternative togoogle calendar, microsoft outlook calendar, apple calendar, yahoo calendar, now.
Compare Proton Calendar vs Nextcloud Calendar vs Fossify Calendar vs KashCal vs Calendula vs
Discover the best Calendar tools for Android, iPhone, Linux, PC and Chrome to download now. And choose secure, self-hosted, peer-to-peer and independant alternatives
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