Olymp Trade — A bit confusing really.

The account setup of the broker is not really straightforward. I am struggling to understand if the account types are the currency bases available. Another thing I need clarified is how the spreads work... I do not see any spreads on y trades, so how does this thing work? Even with brokers that charge commissions, there are spreads, so this is really confusing. It is starting to seem as though the platform is a lot more complicated than I initially thought it was.