Daily Wallpaper: 4K & AI Art

I have this wonderful app on my desktop computer and every day this app has new interesting surprise for me, I really love it, but i have a problem after installing this app on my iPhone,I don't know how can i use the wallpapers? It has only share option, what should i do to use this amazing photos as my iPhone wallpaper like my desktop pc?thank you very much again.

I had this on my work computer - I guess I’m easily bored, I can’t stand to have the same wallpaper for long, and this gives me the most interesting pictures from all over the world to look at every day. Coworkers are always asking me where I found whatever photo happens to be my wallpaper that day. I recently got a new computer at work and didn’t remember to save this program - I was so happy to find it again! And then I found it for iOS too!? This is really too good to be true.

Enjoy using this app, and especially like that it removes the bing branding! My only suggestion would be to expand content and make all images from all categories in the bing desktop app available! Thanks!