If you are currently using a calendar and or contacts synchronization service like Google Sync or iCloud, you should pick an alternative here.
{%
include cardv2.html
title="Nextcloud"
image="/assets/img/provider/Nextcloud.png"
description="Nextcloud is a suite of client-server software for creating and using file hosting services. This includes calendar sync via CalDAV and contacts sync via CardDAV. Nextcloud is free and open-source, thereby allowing anyone to install and operate it without charge on a private server."
website="https://nextcloud.com/"
forum="https://forum.privacytools.io/t/discussion-nextcloud-calender-contacts-sync-tools/1535"
github="https://github.com/nextcloud"
windows="https://nextcloud.com/install/"
linux="https://nextcloud.com/install/"
mac="https://nextcloud.com/install/"
freebsd="https://www.freshports.org/deskutils/nextcloudclient/"
openbsd="http://openports.se/www/nextcloud"
netbsd="http://pkgsrc.se/www/php-nextcloud"
android="https://nextcloud.com/install/"
ios="https://nextcloud.com/install/"
%}
{%
include cardv2.html
title="Email Providers"
image="/assets/img/misc/email.png"
description='Many email providers also offer calendar and or contacts sync services. Refer to the Email Providers section to choose an email provider and check if they also offer calendar and or contacts sync.'
website="/providers/email"
%}
{%
include cardv2.html
title="EteSync"
image="/assets/img/provider/etesync.png"
description="EteSync is a secure, end-to-end encrypted and journaled personal information (e.g. contacts and calendar) cloud synchronization and backup for Android and any OS that supports CalDAV/CardDAV. It costs $14 per year to use, or you can host the server yourself for free."
website="https://www.etesync.com/"
forum="https://forum.privacytools.io/t/discussion-etesync-calender-contacts-sync-tools/1536"
github="https://github.com/etesync"
web="https://client.etesync.com/"
windows="https://github.com/etesync/etesync-dav/blob/master/README.md#installation"
mac="https://github.com/etesync/etesync-dav/blob/master/README.md#installation"
linux="https://github.com/etesync/etesync-dav/blob/master/README.md#installation"
fdroid="https://f-droid.org/packages/com.etesync.syncadapter/"
googleplay="https://play.google.com/store/apps/details?id=com.etesync.syncadapter"
%}
Worth Mentioning
-
fruux - A unified contacts/calendaring system that works across platforms and devices.
-
cloud backups - Consider regularly exporting your calendar and or contacts and backing them up on a separate storage drive or uploading them to cloud storage (ideally after encrypting them).