Learning on the app Be my Eyes

Yesterday I tried to explore this app id was the first time that I explore this app. When I enter in this app Be My Eyes there is a call accessible volunteer when I click there it will make a video call to the company of the app which is helpful for the blind people.
Suppose if I go somewhere else if I lost my way I can use this app by calling a video call to ask what is there infront or which direction I must go or which side I shall turn.