*** Feedback from Users of Calendar Cleaner *** Calendar Cleaner removes duplicates, finds subtle problems with your events, and keeps everything clean as a whistle.įor more information, tips, and a FAQ, see: And that means that bad data can mean a really bad day-or worse. If you're like us, your calendar is how you manage your life. Calendar Cleaner analyzes, reports, and fixes dozens of problems with OS X Calendar and Apple Sync Services-problems ranging from the obvious, such as duplicated events, to the subtle, such as invalid calendar dates and alarms.