By Harsh Sinha Millions of Brits face charges of almost four per cent when sending money abroad – a new app committed to ‘radical transparency’ is set to change all that, writes Harsh Sinha Sending money abroad isn’t exactly sexy. Important, yes – thrilling, not so much. However, HSBC’s launch of Zing, a new currency conversion app, has brought fresh attention to a sector that is too often ignored. While apps that enable users to spend, send and change money are nothing new, Zing’s commitment to ‘radical transparency’ makes it distinctive. Zing’s customers know exactly what they’re paying for …