Put important reminders, appointments, events, tasks etc. right on your Lock Screen where you can see them at the touch of a button. Choose a background image. Add, edit and freely position text.
The best thing is how it works with Calendar. It will show you a list of your events and allow you to choose. It will then automatically summarize each chosen event and place that text in your image. You can customize how it does this in the app's Settings.
Also good for Emergency Contact (ICE) information, allergies, or “if found contact…”
Apple doesn't allow apps to directly create Lock Screen images, so to set the Lock Screen you have to go through Settings.