Most people are probably familiar with creating reminders with specific dates and times, like a reminder for a dentist appointment at 11:00 AM on Monday, or a reminder to go grocery shopping on Thursday. But there are a couple of other useful options aside from assigning a date/time to a reminder, including location-based reminders. These are especially useful for non-urgent situations like remembering to get something you left at a friend's house the last time you were there. Now you can set a reminder to notify you the next time you go to that friend's house.
iOS 13 delivers a much needed overhaul to the Reminders app that includes a more intuitive interface, a daily morning notification of today's reminders (similar to your daily morning forecast summary), enhanced Siri suggestions and improved organizational tools. While reminder lists have been around for some time, the update not only allows you to group lists into categories (basically making a list of lists), but lets you assign subtasks to individual reminders as well.