Persian Calendar - Free and open-source Persian Calendar
SSuite My Calendar Diary - A portable calendar and diary for people on the move...
VueMinder Calendar - Take control of your schedule and get reminded wherever and however you want.
Gmail - Gmail is available across all your devices Android, iOS, and desktop devices. Sort, collaborate or call a friend without leaving your inbox.
Simple Calendar - A simple calendar with events (optional recurring and reminders), week numbers and a customizable...
Google Calendar - Spend less time managing your day & more time enjoying it