NetGuard - NetGuard
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.
AFWall+ - AFWall+ (Android Firewall +) - iptables based firewall for Android
Android Lost - Remotely control your Android phone from the internet or by SMS. Features:
NoRoot Firewall - Firewall WITHOUT ROOT.
iLostFinder - iLostFinder is an anti-theft/lost app for iPhone and iPad.