secondstrade.com is really good

secondstrade might be good but
the one thing I don't like about it is that it doesn't give startup bonus or things like free rolls.
basically what is the site about, i went to that site one to two times but never got an idea about what is about?
I use to play on satoshimine just. Because some time i earn some btc and some time lost my bitcoin
Secondstrade is a binary option, something like a forex way to make money but in simple way. All you need is just to predict and bet on coins price will up or down.
correct me if I was wrong.
