Did not occur to you sometimes you want to change wallpaper and websites cannot find something of quality? In addition, some applications that we can find in the App Store prioritizes earning money rather than providing quality material. And eye: wanting to make money making applications is obvious, but you have to do it giving something good in return.
That is why we have sought a selection of applications for iOS that are not limited to link up databases where there are thousands of wallpapers that we never will, but provide galleries with wallpapers of good quality. There are, and most of your funds are going to cause people to ask you where you got them.