Diskdeleter - Diskdeleter is data removal software that helps protect your privacy by securely deleting data from your hard drive.
iShredder - PROTECTSTAR is a leader in providing Secure Deletion (Erasure) software products: PROTECTSTAR has served more than 2,000,000 customers worldwide and earned a reputation as a leader in providing innovative security solutions.
Wiperapp - Software build to meet all needs of companies dealing with erasing data on daily basis.
Coolmuster Android Eraser - Android Eraser is aimed at helping you to protect your personal data on Android mobile phone and Android tablet by erasing all data from the device securely and permanently.
Blancco Drive Eraser - Hard Drive Erasure Software
Wondershare dr.fone Data Eraser - Factory reset your phone isn't enough. Dr.Fone - Android Data Eraser helps completely erase everything on your Android phone and protect your privacy.