Easy Altimeter

顯示高度計，指南針和基於GPS和其他傳感器的移動速度。

Features of this app :

- Show altimeter, compass and movement speed based on GPS and other sensors.

- A brief representation of the distance travelled from the measurement point to the end.

- The flash buttons on the front allow for night and dark use.

- All functions are very simple to operate on one screen.