The app can send you a list of the day's events in the morning or the night before.
- In the settings screen, open "Calendar Settings" → "Reminder Settings"
- Turn on "Remind All Events for the Day"
- Set the notification times for "Same-Day Reminder" and "Day-Before Reminder"
If you turn on "Notify even if no events", you also get a "No events today" notification on days with no events.