Are snoozing alerts for only 15 minutes frustrating you? SnoozeMaster is a menu bar utility that allows you to have more control over snoozing your Calendar or Reminders alerts. You can change snoozes to last for 1 minute, 2 hours, 3 days, you name it - SnoozeMaster gives you that ability. Pick one off the menu or create a quick Custom alert.

SnoozeMaster features include:
• A user definable snooze list.
• On-the-fly setting of the snooze duration.
• View button to open up the event in the Calendar or Reminders apps.

You can snooze:
• from now
• before event start
• before event end
• after event start
• after event end

The duration can be:
• Minutes
• Hours
• Days

• 10.8 (Mountain Lion) or greater.

NOTE: We recommend that you go into the "System Preferences" -> Notification -> "Calendar" and "Reminders" and set the "Calendar alert style" and "Reminders alert style" to "None". This will prevent the default pop-up from appearing.

IMPORTANT: There are some types of events that we are unable to modify as we do not have "permissions" to edit them. This may include appointments such as ones sent to you as an “.ics” file from an email. You are not the “owner” of this type of appointment and you may not be able to use SnoozeMaster to edit it. In those cases, you will have to launch the Calendar app and manually set it in the Calendar app to be reminded again.

SnoozeMaster cannot snooze calendars that are “Delegates”, as the Apple system programming interface does not allow us to work with Delegate calendars. We recommend that if you are using Delegate calendars, that you change them regular calendars instead.

What’s New

Version 1.9.2

Fixes for OSX 10.8

Ratings and Reviews

3.7 out of 5
3 Ratings

3 Ratings

bumpinthe road ,

very useful app; documentation needs work

I am liking snoozemaster now that I finally understand it; excellent app, but help file could be improved; took several emails to tech support, which responded very quickly, to get it to work. Not a problem with the app, just not explained that well in the instructions; some very confusing issues not addressed completely; but support by email very fast and helpful; I would recommend the app strongly!

MysticKnights ,

Does Not Dismiss Reminder Window

When a reminder comes up, the window for SnoozeMaster comes up AND the normal window from the Apple Reminders app comes up. That wouldn’t be so bad if the Apple Reminders window disappeared when you set the snooze time in the SnoozeMaster windows, but it doesn’t.

JEA99 ,

Great App and Great Support

great app and great support.


On-Core Software LLC
1.1 MB

OS X 10.8 or later, 64-bit processor



Age Rating
Rated 4+
© 2013-2015 On-Core Software LLC


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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