Apps like CalendarSync - CalDAV and more

Here are some great alternatives to CalendarSync - CalDAV and more by Calendar/Task/Contact Sync Mobile :
DAVx⁵ – CalDAV CardDAV WebDAV
DAVx⁵ – CalDAV CardDAV WebDAV
★4.3
iCal Import/Export CalDAV
iCal Import/Export CalDAV
★4.5
CalenGoo - Calendar and Tasks
CalenGoo - Calendar and Tasks
★4.4
CalenGoo Calendar Trial vers.
CalenGoo Calendar Trial vers.
★3.3
BirdieSync for Thunderbird
BirdieSync for Thunderbird
★3.9
ICSx⁵ – Subscribe to calendars
ICSx⁵ – Subscribe to calendars
★4.3
Calibre Sync
Calibre Sync
★4.0
One Calendar
One Calendar
★4.6
Simple Calendar
Simple Calendar
★4.6
Simple Calendar Pro
Simple Calendar Pro
★4.5
Sync for iCloud Calendar
Sync for iCloud Calendar
★4.4
Etar - OpenSource Calendar
Etar - OpenSource Calendar
★4.2
Calendar Widget (key)
Calendar Widget (key)
★4.5
Calendar Planner
Calendar Planner
★4.2
Time Recording Pro
Time Recording Pro
★4.9
Teamup Calendar
Teamup Calendar
★4.8