UK banking startup Revolut has entered the cryptocurrency space. The challenger bank just announced it will let customers buy, trade, and exchange three major cryptocurrencies — Bitcoin, Litecoin, and Ether — in a range of major fiat currencies. Trades and purchases take place within the existing Revolut app. Crypto can be traded in 25 currencies, including Swiss Franc, Polish Zloty, Hungarian Forint, and British Pounds.