> App download event: A fixed fee (subject to periodic adjustments) per install based on the app category of the linked external app being installed. The linked app category must be declared as part of transaction reporting.

> Games: $3.65

> Apps: $2.85

Isn't this dangerously similar to what Unity did with their Runtime Fee? You know, the thing that soured public opinion of them so bad that a lot of devs quit using it altogether? Or is this more of a Google holding everyone hostage situation?