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 $24 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).