Can set alerts when YOU want them.
This is a very useful app. If you want to set an alert reminder the night before an appointment or you need three hours to prepare for something (not 2) or you know you will need more than a 1 week reminder to shop and mail a gift to get it there, this is for you. There was an issue with numbers and time intervals not showing but the developer has fixed that. You can modify any Calendar event notification by tapping on the event in this app or you can create a new event and time in this app, then tap the + to choose and set the custom alert interval. If you need to add Repeat, Invitees, etc., tap Edit Event from the Set Alert page to get the full iOS/iPadOS event edit page. It all goes to the iOS/iPadOS Calendar. Very helpful app!