This app can measure movement speed using a GPS function.
By using the 3G · LTE line and Wi-Fi, you can measure more accurate movement speed.
Because roundness of the earth is taken into consideration to calculation, you can use the equator, Antarctica, etc. anywhere on the earth.
You can not use at model which cannot use GPS function.Actual movement speed and gap may arise depending on the accuracy of GPS.
The icon of this app was allowed to borrow a photograph material from Pocket Pict (http://pocket-pic.info/) appearance.