Use APKPure App
Get Speedmeter GPS Earth Rotation old version APK for Android
Ce nouvel outil affiche la vitesse de rotation de la terre à votre emplacement actuel
With this app you can see the velocity of the earth rotation depending of the latidude of your current location on the globe. This value varies from 0 at the north or south pole to around 1700 km/h
if you are at the earth equator.