Arriving for US consumers back in 2010,_BillGuard sells itself as the world’s first ‘people-powered antivirus system for bills’. If you’re new to BillGuard, let us explain. BillGuard’s predictive algorithms alert you when there’s unexpected charges such as hidden fees, billing errors, scams and fraud on your credit card bills. It also serves up warnings when a similar dubious charge has been flagged by other users, or receives a complaint elsewhere on the Web. As such, the ‘BillGuard brain’ becomes more accurate over time. Last July, BillGuard finally went mobile with its launch for iOS. And today, after an extended beta...

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