That's funny, because I'm not even sure it is a crytpocurrency, or at least whether it meets my definition. It used to completely controlled by Ripple Labs, they just created the ripple tokens up front and allocated them to themselves, so there is no fair distribution due to mining, it also wasn't decentralised or open source. Some of this may have changed since I last looked at it years ago, but I've no interest in it.
I'm not saying it won't be useful, or that Ripple Labs won't be successful in some way, but I'd consider it more of a company with a product/service than a cryptocurrency.