Smartphone apps are great – unless they’re putting you out of business. Today’s Techradar op/ed:

If you can scan the barcode on a flat-screen TV, a fridge, a Fimbles DVD or anything else you’re thinking of buying, you can instantly discover where there’s a better deal. It could be the shop next door, or a website. That’s seriously bad news for high street shops, because the internet will undercut them almost every time.