There are so many cabs that I don't really see the need for this, and most cabs take Apple Pay now, so I've never really seen the point of this and the other on

There are so many cabs that I don't really see the need for this, and most cabs take Apple Pay now, so I've never really seen the point of this and the other one (is there another one? I think there is?). If I was somewhere where there aren't a lot of cabs I'd probably just use Uber, it's cheaper and cleaner anyways.