UpCamp - Book the dates you want at the best campgrounds
Glympse - Glympse is the easy way to safely share your location in realtime. No sign-up needed.
The Outbound - Discover & Share New Outdoor Adventures
Zenly - Zenly is a GPS tracker to locate your friends in realtime.
Nomadgears - Disposable & reusable travel kit for travelers & nomads
OwnTracks - Cross-platform location sharing