I am in no way, shape, or form affiliated with Desktoptopia. Dektoptopia is the perfect application for either Macintosh or Windows users that get bored very quickly on their wallpapers. You can set a timer to change the wallpaper of your desktop to various amazing quality, resolution, and all-in-all, just cool pictures. Download Mac Version. Download Windows Version (BETA.) Visit Desktoptopia website.