TinkerTool - Tinker with the hidden settings of your Mac
Wise Disk Cleaner - Clean junks of Browsers, remove junk and useless files of Windows and Defragment your disk. Wise Disk Cleaner can delete these unnecessary files on your hard disk to free up disk space and make your computer run faster.
Dockey - Make your macOS Dock faster
SDelete - Securely overwrite your sensitive files and cleanse your free space of previously deleted files using this DoD-compliant secure delete program.
MacPilot - Unlock over 1200 features in Mac OS X and optimize your system!
Avast Cleanup - Next generation tuneup and cleanup for your PC