Into area alarm

Reaching inside the range of the destination, my smartphone will alarm me by sound or vibration.

♤ Be simple on the ground during walking around.

♤ Touching on the map for the target area.

♤ Climbing up or down mountain after setting the next points.

♤ Be easy on the ground during wandering with

♤ Just clicking on the map is all set.

♤ Keep moving until you got alarming.

☞ Caution: GPS signal is working on the ground with being able to looking sky.