Amazon plans to help Snapchat challenge Instagram and Pinterest for social shopping supremacy. Snapchat has announced it?s slowly rolling out a new visual product search feature. You can use Snapchat?s camera to scan a physical object or barcode, which brings up a card showing that item and similar ones along with their title, price, thumbnail image, average review score and Prime availability. When you tap on one, you'll be sent to Amazon?s app or site to buy it. The feature is rolling out to a small percentage of U.S. users first before Snap considers other countries.