Starling Bank is one of the three main “challenger banks” in the U.K., which have made inroads into the banking ecosystem with fee-free services, no physical branches and alternative features. In comparison to Revolut and Monzo, Starling Bank has marketed itself as a proper banking institution, albeit without any physical branches. It has been named Britain’s Best Bank at the British Banking Awards four years in a row. Originally launched in 2014, Starling was the first of the three mai...