Glympse - Glympse is the easy way to safely share your location in realtime. No sign-up needed.
Pathshare - Pathshare is a beautiful app that helps you share your path in realtime.
CircleCare - Family App to Motivate Everyone
Foursquare - Foursquare is all about helping you find new ways to explore your city.
Microsoft Family Safety - The Microsoft Family Safety app helps empower you and your family to create healthy habits and protect the ones you love with digital and physical safety.
Friendz - Friendz is a free GPS based app that lets you find your groups on the map & keeps you notified.