The Best 2 DAVdroid Alternatives
DAVdroid is an all-in-one synchronization solution for your contacts (CardDAV), calendars (CalDAV) and your tasks (based on VTODO).
DAVdroid is the only allinone synchronization solution for both contacts and calendars based on WebDAV (CardDAV and CalDAV). The app is easy to set up and integrates perfectly with your favorite calendar/contacts app (including default apps). It can also be used seperately, if you either have CalDAV or CardDAV.
Cloud sync Multiple languages Support for WebDAV CalDAV CardDAV
cloud-sync multi-language calendar webdav webdav-sync caldav carddav