Ripple is a global payment protocol aimed to provide fast transactions and cheap payments internationally. The network uses a digital currency known as XRP (sometimes it's referred to as Ripple). Unlike other cryptocurrencies Ripple is not aimed to replace banks, rather this project is created to improve the work of banks (including transactions between different banks) via blockchain solutions.
The 0x (ZRX) token is an Ethereum-based token operating as the native token of the 0x protocol. It is noteworthy that the 0x protocol represents an open-source framework for developers. The protocol facilitates both ERC-20 and ERC-721 assets. It aims to make transactions get settled in the off-chain mode to improve overall performance of decentralized exchange.