It works, at least in old version. I haven't tested it in new version but should work the same. One important thing about this APP is that, you can only see overlap & update if you are the driver currently driving the car. Spectate team mate does not count as you are driving, hence will not show the overlay or any data (it should be shown as soon as driver swap is done and you are in control). You have to be the one who is driving to see. Lemme know if it works, thanks. (I will also try find someone to help for testing.) Update: It is indeed some problem with driver swap, I'll try fix asap.