There's no excuse for any iPhone user to go shopping without consulting the Google Shopper app first. It's free, it's fast, it'll tell you if you're getting a good deal, and it'll pull up product reviews for better decision making.
Nothing ruins a recent purchase quite like finding lower prices online as soon as you bring it home. With one of these barcode-scanning, price-crunching smartphone apps, that never has to happen again.
Black Friday, Schmack Schmriday: here are the best Android apps for shopping all year round.