Robinhood is legit. You can sign up using a referral, by the way. This way both you and the other party get a free stock. That does sound like Robin Hood and the Merry Men, actually

Anyone got a link to help a brother out? I need to get in on this

LOL, dude actually they are talking about Cobinhood and not Robinhood. Cobinhood isnt a scam, they have their own of earning revenues which helps them maintain their services. What they do is collect 5% of the funding raised from ICO as underwriting service fee. Apart from that they also provide the same service for other ICO projects.
Thats the only way Im sure they are able to earn revenues, though some might ask what if those sources happens to fail them? Well, maybe they will stop the zerofree trading. But dont give 100% trust to any of these. Always have backup plans in case things go bad.