Calendar Cleaner analyzes, reports, and fixes dozens of problems with iCal and Apple Sync Services – problems ranging from the obvious, such as duplicated events, to the subtle, such as invalid calendar dates and alarms.

If you’re like us, your calendar is how you manage your life. And that means that bad data can mean a really bad day – or worse. Calendar Cleaner removes duplicates, finds subtle problems with your events, and keeps everything clean as a whistle.