FlexiSPY - FlexiSPY is the original "phone spy" software - it's been on the market since 2005.
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.
XNSPY - XNSPY is the world’s most trusted cell phone spy software to monitor any smartphone and tablet remotely. It works on a range of devices including Android phones, Android tablets, iPhones and iPads.
Android Lost - Remotely control your Android phone from the internet or by SMS. Features:
Spyera - Spyera is the name of an undetectable tracking and monitoring application that offer its users the comprehensive set of tools for remote monitoring and tracking of any smartphone.
iLostFinder - iLostFinder is an anti-theft/lost app for iPhone and iPad.