My friend was also approached by this UFUN club.
Apparently they have their own crypto currency like bitcoin called Utoken. From what I can comprehend is that you join UFUN by choosing one of the memberships starting from 500usd and they give you 400Utokens.

And after awhile, when more new members or demand for the utoken increases. the company will have a floor price and ceiling price for the market value of the Utokens and will "split" once it hits the ceiling price. I think a split is something like they issue more utoken to devalue it back to the floor price. Once this happens, your tokens in hand will double. Hence you gain the profit.

Other than thay , you can use the tokens to buy stuff off their UFUN club market/app

I am doubtful with this UFUN Club but I was hoping to see if lyn has more information on this.

This is where I read about how they work
http://idamandyna-ufun.blogspot.com/2014/0...kens_2.html?m=1