Which app is it? How does this work with legal data protections or even with just the trust of your users? Are you really saying "hey anyone on the internet, here's a bunch of sensitive personal data to use for whatever"???
Well everyone's a stranger until you get to know them. I'm not going to give strangers an anonymized data dump. I'll work with the person on it together. We'll make sure it's all legit. OKCupid, Hinge, and Tinder all analyze data!