DaisyDisk - DaisyDisk is a disk analyzer tool for OS X that visualizes hard disk usage and allows to free up hard disk space.
Hologram - Frontend Development and Design
CleanMyMac X - Clean, protect and speed up your Mac
MacFly Pro - Smart assistant for better Mac performance
Wallpaper Engine - Wallpaper Engine enables you to use live wallpapers on your Windows desktop.
HiddenMe - Hide desktop icons with a single click.