Turn Off iCal Alerts in Mac OS X
Anytime I schedule anything particularly important I use iCal alerts to remind me of the event. But I really only want to receive the alarm on my iPhone which is the device I have with me all the time, rather than coming home and opening my MacBook screen to an outdated alert from earlier in the day. The solution for this is to disable all iCal alerts in Mac OS X, which will not impact the alarms on other synced iOS devices:
- From iCal, pull down the iCal menu and choose “Preferences”
- Click the “Advanced” tab and check the box next to “Turn off all alerts”
Close out of Preferences and the next time an alarm is scheduled to go off it won’t happen on the Mac. This is also a helpful setting to adjust for auxiliary Macs that have iCloud configured where you want access to the Calendar data but don’t want to be annoyed with the popup alarm.