Save Hollywood - Play movies as your screen saver
DaisyDisk - DaisyDisk is a disk analyzer tool for OS X that visualizes hard disk usage and allows to free up hard disk space.
Padbury Clock Screensaver - Minimal screensaver for Mac
CleanMyMac X - Clean, protect and speed up your Mac
HotShots - Hotshots is a screenshot tool with some editing features.
MacFly Pro - Smart assistant for better Mac performance