Challenger banks in the UK took flight in the mid-2010s, accelerated by legislation from the EU and UK government which welcomed new competition in the industry. In a two year period, Revolut, Starling and Monzo were launched, with an aim to win customers through better mobile experiences. At the time, mobile banking in the UK was a nightmare, some banks were still struggling with the web. Starling Bank was the first on the scene in the UK, launched in 2014. Tom Blomfield, the founder of Monz...