Glympse - Glympse is the easy way to safely share your location in realtime. No sign-up needed.
Relief Maps - 3D GPS for outdoor sports
Zenly - Zenly is a GPS tracker to locate your friends in realtime.
Google Earth VR - Walk the earth in VR
LockOnMe - LockOnMe is a location-sharing app, displaying targets and associated Points Of Interest on maps & fun radars.
Findster - The first GPS tracker for Kids and Pets without monthly fees