CleanMyMac X - Clean, protect and speed up your Mac
ShredIt X - Shredlt X is the latest and most advanced security eraser and optimization software in the market today.
DaisyDisk - DaisyDisk is a disk analyzer tool for OS X that visualizes hard disk usage and allows to free up hard disk space.
Fossils - Find and clean out all your old unused files
Remo Duplicate File Remover - Remo Duplicate File Remover is a simple yet powerful duplicate file remover app that lets you easily search and remove duplicate files on your Android mobile and tablet.
CleanMyDrive - A lightweight drive manager for Mac