Wallpaper Engine - Wallpaper Engine enables you to use live wallpapers on your Windows desktop.
DaisyDisk - DaisyDisk is a disk analyzer tool for OS X that visualizes hard disk usage and allows to free up hard disk space.
ScreenPlay - Open-source and cross-platform Wallpaper, Widgets and AppDrawer app.
CleanMyMac X - Clean, protect and speed up your Mac
Lively Wallpaper - What is it? Lively is a Free and Open-Source Software (FOSS) for animated desktop wallpapers.
MacFly Pro - Smart assistant for better Mac performance