HangOut is a simple Android app to share your location with family
and friends so they know where you hang out. You can share a link
with an expiry time so others can follow your trip real-time on the
map until the link expires. HangOut can automatically send a text
message when you have arrived safely at you destination. If you
enable the GPS colored dots from blue (0 km/h) through red (50
km/h) will indicate the velocity on your trip.