Eddress - An address system for the digital age
Locate - Locate allows you to easily find your friends and family from your iPhone, iPad, or iPod touch.
Glintter - Add your favorite addresses and keep them within easy reach
Swarm - Swarm lets you earn prizes and compete with friends based on the places you go.
what3words - Geocoding system for the simple communication of locations with a resolution of 3 m
Zenly - Zenly is a GPS tracker to locate your friends in realtime.