Reimage - Reimage is the only program of its kind.
Clean Master - Some users swear by it, some call it a glorified snake oil that does more harm than good. That can be said about any snake oil, but what specific brand of snake oil can boast almost a billion downloads around the world?
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.
CleanMyMac X - Clean, protect and speed up your Mac
Restoro - Restoro is one of the advanced system repair scanners for PC that facilitates you to restore your PC while scanning for malware and security issues without changing the file structure.
CCleaner - CCleaner cleans, speeds up and frees up space on business endpoints.