Is KuCoin the same as Coinbase?

Are KuCoin and Coinbase interchangeable or are they two distinct platforms with unique features and offerings? I'm curious to know if they cater to similar user bases, offer the same range of cryptocurrencies, and provide comparable levels of security and customer support. Additionally, are there any notable differences in their trading fees, user interfaces, or the types of trading options they provide? As someone new to the cryptocurrency world, understanding the nuances between these platforms would be incredibly helpful.