John's Background Switcher - Switch backgrounds to trending imgur, reddit, tumblr threads
MenaPay - Crypto made easier than cash
Wallcat - Enjoy a new, beautiful wallpaper, every day.
Clarity Wallpaper - Create, explore and share elegant wallpapers.
Splashy - Breathtaking, auto changing wallpaper app for macOS, Windows, Linux, iOS & Android
Unsplash Wallpaper - Gorgeous wallpapers on your Mac