CardDAV services

Apple/iCloud

Sign-up required

iCloud Contacts is CalDAV Enabled.

FastMail

Free Trial/Premium

Keep on top of your events, meetings and day-to-day tasks with calendars and contacts that work across all your devices.

fruux

Synchronization Service

fruux is compatible with CalDAV and CardDAV.

GMX.net

Free/Premium Service GERMAN only

The new GMX.net address book also offers CardDAV.

GMX.com

Free

The new com address book also offers CardDAV.

Landmarks

CalDAV/CardDAV service

Landmarks is a CalDAV/CardDAV service available initially in Germany.

Memotoo

Synchronization Service

Memotoo is compatible with CalDAV and CardDAV.

Servermx.com

E-Mail/CalDAV/CardDAV service

servermx.com offers e-mail hosting plus Contacts and Calendars via CalDAV and CardDAV support.

Yahoo! Contacts

Yahoo Contacts allows syncing Apple’s Address Book with the Yahoo! CardDAV server (and presumably others).

WEB.DE

Free/Premium Service GERMAN only

The new WEB.DE Contacts also offers CalDAV.

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