BusyCal alternatives

BusyCal
BusyCal is an alternative to the built-in Calendar app on OS X that provides powerful time-saving features in a friendly, easy-to-use package. BusyCal's unique features include customizable calendar views, scrolling Month and Week views, an integrated Info Panel for quickly viewing and editing events, integrated To Dos that display in the calendar and carry-forward until completed, custom font sizes and styles, graphics, live weather feeds and moon phases, and a menu bar app for quick access to the current day's events and weather.
BusyCal alternatives are:
iCal, Google Calendar, MS Outlook, Fantastical, Things