OkCash is a blockchain based digital cash system. OkCash is very accessible. It has wallets on Windows, multiple Linux distros, Android, and a web based wallet. Users can earn interests by holding on to their coins. Wallets should be left running and after 24 hours users will start to receive their rewards. Because there is no proof of work involved, this in eco friendly. It is fast and has very less fees. It is not marketed at any specific country. Rather, it wants to be the cash of choice for everyone around the world.