Glympse - Glympse is the easy way to safely share your location in realtime. No sign-up needed.
Pathshare - Pathshare is a beautiful app that helps you share your path in realtime.
Zenly - Zenly is a GPS tracker to locate your friends in realtime.
Hemisphere - Do you miss Google Latitude? Hemisphere is here to help.
LockOnMe - LockOnMe is a location-sharing app, displaying targets and associated Points Of Interest on maps & fun radars.
OwnTracks - Cross-platform location sharing