It is a live wallpaper app that allows you to easily set multiple photos as wallpaper.
You can set an image for each screen.

You need to set this application as live wallpaper from the settings icon at the bottom of the screen.

For terminals whose screen position cannot be obtained swipe to switch images.
Even if the display screen changes with the home button etc.
The image does not change.
Also the image cannot be fixed for each screen.