JOYSO suggests a hybrid design for token trading, combining the advantages of a centralized exchange - fast and fully-featured - with the advantages of a decentralized exchange - improved security and privacy. JOYSO uses an efficient architecture that substantially reduces gas fee in the exchange process. Using JOY tokens on the JOYSO platform will entitle users to a 50% discount in transaction fee. Furthermore, JOYSO allows free listing for any ERC20 tokens, thus creating value to the ecosystem.