KuCoin is an internationally operating cryptocurrency exchange based in Hong Kong. The site is specialized in crypto to crypto trading and doesn't offer any fiat currency support. It rose to become a very popular exchange very fast due to its relatively low trading fees and incentives for holding and trading its native currency the KuCoin token (KSC). Holders of this coin are offered lower trading fees and a passive income of KSC when referring the exchange.
KuCoin is comparably user-friendly if you already have a bit of experience buying and selling cryptocurrencies, it can be a bit difficult for beginners but is a solid choice if you are looking into trading on the altcoin market.
This exchange offers low fees and good security through two-factor authentication and is also available in more than ten languages.
A big advantage is that the site offers a large number of trading pairs including BTC, ETH, NEO, and KCS and that it shows you a USD or BTC value that your portfolio is worth. KuCoin also offers a mobile app.