Ripple is known as a Real Time Gross Settlement System which is a ‘currency exchange and remittance network’ that independent servers validate. The currency traded is known as XRP and transfer times are immediate. XRP can be exchanged for most other currencies with its USP being the avoidance of fees and wait times often associated with banks. It isn’t made up of a blockchain but rather a Hash Tree and its currency can’t be mined because there are a finite number of coins – one billion. Ripple is popular with banks and institutions though the XRP token isn’t necessarily required for each transaction.