What are some alternatives?
When comparing OfficeCalendar and Kin Calendar, you can also consider the following products
Google Calendar - Spend less time managing your day & more time enjoying it
New Google Calendar - Google is launching a new look + new features for Calendar
Teamup Calendar - Cloud-based calendaring using capability URL, application developed in Zurich, Switzerland.
Mixmax Calendar - The fastest way to schedule meetings with anyone, anywhere
UpTo - Life goes beyond meetings and appointments
Clean Google Calendar - Makes Google Calendar look nicer & launches as a desktop app