Steem Dollars are liquid stable-value currency tokens designed to be pegged to $1 USD. Steem Dollars can be traded with STEEM and transferred to other accounts for commerce or exchange.
GDC is Global Digital Content token for millennials that is consumed in a variety of content services including media, digital commerce, game, and entertainment. GDC is used directly in the services we developed and partnered amid our constant efforts on enhancing use cases.