Facebook's Oculus Store takes a 30% cut just like Apple, not just of initial sales but also in app purchases including presumably services like this, and one of their big goals is to be even more pervasive than smartphones in general purpose computing, through AR glasses. They also hold a bigger monopoly share of the VR market than Apple does of phones and have a monopoly in a secondary unrelated market (social networks) and major market shares in messaging services (monopoly share in some regions).