Standard crypto-coins are a digital asset designed to be used as an apparatus of trade. Additional coins are added via mining. Anyone is able to get involved by using their a computer. Mining requires a large amount of time and electrical power, though. A fast computer is also required, to mine effectively. On the other hand, Ripple is a centralised asset, which is unmineable. A limited supply of coins were created by the company and this number will not be added to.