but herey trade now growth into 0.4 btc .
Now , According to the history of exchange yobit.net & poloniex
which out of them you will suggest .
Because I heard something more complicated like ddos attack , is this true .
Now between these two which is more secure and handleable for my mobile .
i will give the best option which is poloniex because poloniex have large member, really active people in the market, have many good altcoins list that you can buy, and its mobile. but in yobit, you can doing trade with low price depend on the poloniex and its good for new people in the trading.