You can add up to four Home widgets to your lock screen; they will show up in the lower shelf below the clock. There are two widget sizes: double and single, and they aren’t interactive — you ...

The iPhone home screen is more customizable than ever before. Adding and resizing widgets or changing how app icons look is easy, and you can go even further with custom widgets and icons with ...

They also add their name to the widget on your home screen and either don't allow you to remove the name or they make you pay extra to do so. Finally, the widgets themselves are often very limited.