BusyCal — the ultimate calendar and to do list manager for Mac OS X

BusyCal is an award winning desktop calendar that combines personal productivity features for individuals with powerful calendar sharing capabilities for families and workgroups.

Personal productivity

BusyCal's unique features include a non-modal Info Panel for easier data entry; To Dos that display in the calendar and auto-forward until completed; repeating To Dos; customizable calendar views including a List view and scrolling Month and Week views; adjustable font styles and sizes, live weather feeds, moon phases, graphics, sticky notes and more.

Sync with the cloud and iPhone

BusyCal syncs with iCloud, MobileMe, Google Calendar, and iCal Server. You can share calendars with others through the cloud or on a local area network without a server. And BusyCal syncs with the iPhone, iPad, iPod Touch, and other apps and devices that sync with iCloud, MobileMe, Google or Sync Services.