My GPS (kr.co.iefriends.mygps) on Google Play
* The best anywhere to run lightly.* My GPS app, simply check my location and address, and Tell your friends to send the coordinates, such as SMS, SNS, KakaoTalk (Kakao).* It uses common GPS apps will be looking at a lot of battery power. My GPS apps do not get the real-time coordinates, the battery is not worried.