IOCoin is a digital currency released in early July of 2014. Just like any currency (Dollar, Euro) I/O Coin has a real world value. This value is based on the latest trades on digital currency exchanges. You also earn interest on the coins you hold in your wallet, by allowing them to 'stake'. Staking helps secure the network. In turn, users are rewarded with a small unit of a coin for the length of time the wallet is open and staking.