Glympse - Glympse is the easy way to safely share your location in realtime. No sign-up needed.
iKeyMonitor - iKeyMonitor is a mobile app for both iPhone and Android devices that with parental control capabilities and phone monitoring features.
Zenly - Zenly is a GPS tracker to locate your friends in realtime.
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.
OwnTracks - Cross-platform location sharing
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.