From onlulu.com's FAQ: "Lulu Dude is a separate app we created for the boys because we do not let them into the original Lulu.

Guys don’t see what the girls see. We let them select their relationship status and profile picture and we encourage them to get their “fan base” to review them.

Lulu Dude is also a place for guys to get self-improvement tips. Think of Lulu Dude as Cosmo for guys."

What is that? It wants a Facebook.

I don't have Facebook account myself, but it's related to Lulu app and onlulu (according to the faq). Apparently, guys can see what girls say about them.

So you sign in with your FB account, they pull in your data and put it into their app db so ladies can find you easier?

Very ... smart.

/edit: Oh, their privacy disclaimer states that they will also pull your friends' data into their DB.

I don't think the main goal is to help people. Lulu get personal datas from girls (mobile app, onlulu) and from guys (luludude) with this system and probably make money with it. Helping ladies and guys is a "secondary" activity.