#3 Inside FIIT: The No. 1 fitness app, with Finance Director Kerry McClelland

Moving from capital markets into the app industry, Kerry McClelland is building the finance function at Fiit, the most popular fitness software in the app store. She explains why killing Fiit's free trial was one of the best business decisions ever, which key metrics to focus on in a fast-growing company – and why those are more complex than most people think.