Prey - Prey is the simplest and most reliable solution for tracking, data protection & management for Windows, Mac, and mobile devices. Track with precise location, wipe, reset and secure devices across all platforms.
Acronis Cyber Protect Home Office - (Formerly Acronis True Image) Complete protection for your digital life
Android Lost - Remotely control your Android phone from the internet or by SMS. Features:
Clonezilla - Clonezilla is a suite of software that's designed to allow you to back-up and image new hard drives with your data.
iLostFinder - iLostFinder is an anti-theft/lost app for iPhone and iPad.
Macrium Reflect - Macrium Software - the creators of Macrium Reflect backup, imaging and cloning software.