"Ripple is a real-time gross settlement system, currency exchange and remittance network created by Ripple Labs Inc., a US-based technology company. Released in 2012, Ripple is built upon a distributed open source protocol, and supports tokens representing fiat currency, cryptocurrency, commodities, or other units of value such as frequent flier miles or mobile minutes. Ripple purports to enable "secure, instantly and nearly free global financial transactions of any size with no chargebacks." - Wikipedia

"As a result of this strong financial industry adoption, the Ripple cryptocurrency, XRP, is currently the third most valuable cryptocurrency by market cap, after Bitcoin, with a valuation of over $90 billion in January 2018. While you can buy XRP, it’s not intended for consumer use. Instead, it’s a token that provides liquidity for banks as they facilitate cross-border transfers." -skalex.io

In Remitano, you can buy, sell and swap your XRP to other cryptocurrency:
​https://remitano.com/xrp

You can follow some below references for better understanding: 

​

​

​