We promise we’ll never mess with your stuff, we don’t override your device calendar settings—but because of this you may be receiving multiple notifications for the same meeting.
These customizations should help get rid of redundant notifications:
1) On your iOS device, go to Settings > Notifications > Calendar > disable "Allow Notifications"
2) Check to see if your device calendar shows multiple sub-calendars that may be recognizing the same meeting.
3) Open the MobileDay app and go to “Menu” and select “Calendar Selection.” This will give you the option to select only the calendars that you would like MobileDay to display and send notifications for.