I don’t remember any marketplace when I tried Vexl. Anyways, I’m not comfortable giving the app access to my phone contacts. Also, I guess it is likely I would be connected to friends I already know they are bitcoiners (I know, I could get connected to friends of my friends). And I don’t like the framing and closer to how cash works in the real world because, not sure about the others, I don’t usually exchange cash with my mutual contacts.