CleanMyMac X - Clean, protect and speed up your Mac
CCleaner - CCleaner cleans, speeds up and frees up space on business endpoints.
Fossils - Find and clean out all your old unused files
Outbyte - Outbyte is a cmprehenmsive computer repair tool that is built to address a range of various system issues like clean up your drive, optimize performance and enhance privacy or security.
DaisyDisk - DaisyDisk is a disk analyzer tool for OS X that visualizes hard disk usage and allows to free up hard disk space.
Tweaking - Tweaking is an all-in-one repair tool, helping you to fix large Windows problems such as registry errors, file permissions, as well as other issues with Internet Explorer, Windows Update, Windows Firewall, and many more.