TransforMap - There are Plenty of Alternatives. TransforMap makes them visible.
Glympse - Glympse is the easy way to safely share your location in realtime. No sign-up needed.
CircleCare - Family App to Motivate Everyone
Facebook Places - Let your friends help you discover restaurants, hotels, museums and more.
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.
Umapio - Umapio is a map showing your friends and strangers. Make friends all over the world!