Is there an app that you can take a picture of something and it will tell you where to buy it?
QR reader can scan objects and give you details on where to find it. A barcode is a machine-readable label attached to an item and that records information that is related to that item. QR reader are common with iPhone users.
QR Reader. If you scan the barcode on something it will bring up different places that sell it and prices
At least I know apps that can scan the bar code on a product and tells you how much it costs and where you can buy it.