Wallpaper X 3.1 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The application lies within Theming Tools, more precisely Wallpapers. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. This free Mac app is a product of TommyStuido.
From the developer:
Wallpapers X comes with more than 700 beautiful 4K wallpapers to make your desktop more attractive. This easy-to-use application allows you to switch automatically between images. Also, the utility supports importing local wallpapers. The images you like most can be added to Favorites.
You may want to check out more Mac applications, such as Wallpaper Wizard: HD Wallpapers Collection, Wallble - HD Wallpapers or Live Wallpaper, which might be related to Wallpaper X.
Wallpapers
Wallpapers