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.
The higher the functionality of the project, the more convenient it will be popular, if even on the stock exchange there is an exchanger and immediately output to the card, it is very convenient