Wallpaper HD and 4k Wallpaper contains a huge collection of 2700 plus images which you can set it as wallpaper.

This app supports all HD screens and Mobiles and 4k screens.

How to use this app?
As soon as you will open the app you will see a list of categories. Select any one categories and then you will be loaded with a lot of images.

Select any one of the images and then you will have the two options to download and set as wallpaper.

Categories of this app :
Space
Tech
Cars
Nature
Clouds
Cities
Love
Money
Lakes
Flowers
Colors
Animals
Dogs
Cats
Chimpanzee