Download this app if: you want to share your location during an emergency.
This apps can save your life, when you encounter danger situation. You can use it to send SMS with your location info(via base station location) or dial to a predefined emergency contact person.
This program is very easy to use. It can also be used for the care of disability person or elderly...
Hopefully you'll never have to use it — But it's nice to take this safety precaution for only a buck.