Glympse - Glympse is the easy way to safely share your location in realtime. No sign-up needed.
BubbleGlobe - Book unique things to do with locals
Zenly - Zenly is a GPS tracker to locate your friends in realtime.
Zoola Fix - Party with a local, on-demand
OwnTracks - Cross-platform location sharing
Works For All - Find a central meeting place for everyone in the group