CleanMyMac X - Clean, protect and speed up your Mac
DaisyDisk - DaisyDisk is a disk analyzer tool for OS X that visualizes hard disk usage and allows to free up hard disk space.
Memory Clean - Super Powerful Memory Cleaning Utility for Mac
Declutter - Cleans and organises your files in Mac desktop automatically
Cooldown - Bring back the serendipity and excitement of the office, remotely.
HiddenMe - Hide desktop icons with a single click.