Monolingual - Monolingual is a program for removing unnecessary language resources from OS X, in order to reclaim...
SDelete - Securely overwrite your sensitive files and cleanse your free space of previously deleted files using this DoD-compliant secure delete program.
Disk Xray - Disk Xray is a disk usage statistics viewer, duplicate files and folders finder and cleanup tool for Mac OS X. Disk Xray performs three fundamental functions, and it performs them great.
CCleaner - CCleaner cleans, speeds up and frees up space on business endpoints.
CleanMyPC - A smart cleaning tool for a better-running computer.
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?