1,000,000 Wallpapers HD 4K

1. How do I use Wallpapers on my iPhone?

1. - First you select a wallpaper in the app, next you click on the Download Button to save it in you photos album on your phone.
   Go on your Photos album on your device, then select the image you just downloaded
   Select the picture then click on the Share button, then select "Use as background".
   And that's it :-).