What I think would be interesting is: what if a company like this made an app like this, but then clearly stated to users that it'd be collecting data on them and sending it to marketers? They could even pitch it as helping to keep prices "low". How much would this hurt sales? Would it even hurt sales at all? Given the proliferation of "smart TVs" and various IoT devices, I'm extremely skeptical that a company would…
Of course it would. What is the consumer benefit derived from the collection of this data?