Wallpaper by Google 

Released on 18 October 2016, this App is  not for old versions of android. Choose one of your own photos, an image from the Google Earth collection, a scenic landscape from Google+ and more. Change it as often as you like, so your phone always represents your style. Access images from Google Earth, Google+ and other partners. Show the world one wallpaper on your lock screen, and keep one for yourself on your home screen. (Requires Android 7.0, Nougat and above.) Pick your favourite category and you’ll get a new wallpaper image each day.