Apps like CalendarSync - trial

Here are some great alternatives to CalendarSync - trial 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 Trial vers.
CalenGoo Calendar Trial vers.
★3.3
CalenGoo - Calendar and Tasks
CalenGoo - Calendar and Tasks
★4.4
BirdieSync for Thunderbird
BirdieSync for Thunderbird
★3.9
ICSx⁵ – Subscribe to calendars
ICSx⁵ – Subscribe to calendars
★4.3
Simple Calendar Pro
Simple Calendar Pro
★4.5
Simple Calendar
Simple Calendar
★4.6
Sync for iCloud Calendar
Sync for iCloud Calendar
★4.4
One Calendar
One Calendar
★4.6
Teamup Calendar
Teamup Calendar
★4.7
Calendar Widget (key)
Calendar Widget (key)
★4.5
Etar - OpenSource Calendar
Etar - OpenSource Calendar
★4.1
Calendar Planner
Calendar Planner
★4.2
NABI- My Schedule Assistant
NABI- My Schedule Assistant
★4.3
Calendly Mobile
Calendly Mobile
★4.6