Just to add to this. This isn't creepy because its illegal or provides something that was impossible before---actually dorm address information at my uni was available online to students. It comes off as creepy because of the way it is setup: charging men for access to women.
It basically circumvents all of our accepted social protocol without any rationale beyond personal profit.
I think the outcry of how "creepy" it is that an app is selling men access where women live is going to overshadow any possible profit. As soon as the media begins beating that drum, Apple will pull the app to avoid bad press and may just issue refunds too.
Are you living in a cave? Every heard of "ladies night"? They get in free while men have to pay a cover, hell, sometimes they even get a free drink while men do not.
I appear to be living in a place where that's illegal (the EU). We don't have "ladies night" here, it's illegal to charge one sex while letting the other in for free, it's illegal to give one sex a free drink.