Cryptocurrency exchange is definitely necessary, or as the people say the exchanger, to perform different actions, such as exchange, trade, purchase, transfer ...
But how can you call yourself right after all? Can beat online trader?
I think there is no significant difference in this, namely in its sound, because the main thing is how and with what kind of effort one or another actions, transactions, and the like are made.
Now there are many projects that create their own copyrights, their own mini-exchangers, which allow you, without leaving the system, without making a bunch of transitions, to make a purchase, or exchange.
I think that this is very convenient and soon will be one of the new trends in ICO projects that create projects that are connected directly to exchangers, exchanges, trading and various similar actions that will allow to work profitably on the site without wasting precious time.