There are several issues with RealPage versus something like a public-data analytics tool: * RealPage actively suggests a price for each unit without exposing

There are several issues with RealPage versus something like a public-data analytics tool: * RealPage actively suggests a price for each unit without exposing the underlying fundamentals to the customer, rather than displaying aggregate data and allowing the customer to make a pricing decision. * RealPage incorporates private data, including vacancy data, from all participating companies into their pricing model in order to generate a shared agreement about pricing. This information is being voluntarily shared in order to manipulate the market - that is, they broker horizontal collusion between players in a vertical industry. A group of landlords calling each other to say "we're going to make sure the vacancy rate stays at 5.5% this year" or "hey let's make sure we don't let these units go for under market value even though they're empty" would also be illegal collusion, it's just being laundered through an algorithm. This is the big smoking gun that makes it a hub-and-spoke price fixing ring (also called vertically integrated horizontal collusion - ie, a cartel). There's also the part where RealPage bought their main large-scale competitor, Lease Rent Options (who claimed to use only public data, in contrast to RealPage), in a 2017 deal that probably shouldn't have passed antitrust review, so there isn't anyone else to blame (they also own Buildium).