Disk Drill by Cleverfiles - Recover any type of deleted files in Windows & Mac including Office documents, messages, and media files quickly and easily.
MiniTool Power Data Recovery - MiniTool Power Data Recovery is a freemium data recovery tool that works quite well considering the basic version is the only free aspect of the app.
EaseUS Data Recovery Wizard - Advanced data recovery software to do format recovery, unformat and recover deleted files emptied...
Puran File Recovery - Puran File Recovery can be used to recover deleted/lost files/partitions.
Recuva - Accidentally deleted an important file? Lost files after a computer crash?
IObit Undelete - MacBooster 8, IObit official Mac app, helps you clean over 20 types of Mac junk files, easily free up Mac hard drive and make OS X run faster and secure your Mac OS X from Mac malware and Mac adware.