CardDAV Sync swift

CardDAV-Sync is a CardDAV client for Android to synchronize contacts. Due to its implementation as sync adapter it integrates seamlessly with the default contacts app. (Also check out CalDAV-Sync)

Important note for Android 4.1 and Samsung users: To prevent the removal of your accounts on reboot install this app: https://play.google.com/store/apps/details?id=org.dmfs.jb.workaround.carddavsync At present, Samsung users still need this workaround, even on recent devices....