This app can measure the distance by using iBeacon technology.
※If you dont have iBeacon transmitter, you can use an another iOS device as a iBeacon transmitter.
This app is for people that have a beef about "Measuring the distance by using GPS".
By all means, please try it.
Attention:
You need to allow the activation of GPS and Bluetooth to use this app.
You need to use the device that is over iOS 7.0.