I found this recently. because I trade at afternoon for some reason, while the price is very steady & move slowly.
regardless it's data difference from any MT chart, it changes the entry number.
to make myself clear, here is an example:
let's say I enter at 1.55555, this number will be showed at realtime on their page, and I assume that it doesnot change while I trade, and anyone can see the number when click APPLY to confirm trade.
if I choose UP , my entry number will changed to 1.55560,;
IF i choose DOWN, my entry will change to 1.55550,.
which means you will need 5 more pips to win, that makes the trade harder, and this happen a lot.
And B*binary call themselves the best broker.