Recuva - Accidentally deleted an important file? Lost files after a computer crash?
CleanMyMac X - Clean, protect and speed up your Mac
Disk Drill by Cleverfiles - Recover any type of deleted files in Windows & Mac including Office documents, messages, and media files quickly and easily.
MacKeeper - The new MacKeeper app delivers multilayered protection from malware, online threats, and identity theft & Mac performance optimization. Learn what is MacKeeper.
EaseUS Data Recovery Wizard - Advanced data recovery software to do format recovery, unformat and recover deleted files emptied...
Cocktail - General purpose system modify/repair utility