The online shopping company's Price Check app, which is available for iPhone and Android, allows shoppers to scan a bar code, take a picture of an item or conduct a text search to find the lowest prices.

Amazon is offering consumers up to $5 off on purchases if they compare prices using the online giant’s mobile phone application in a store.

The promotion goes live Saturday and will serve as a way for Amazon to increase usage of its bar-code-scanning application, while also collecting intelligence on prices in the stores.

This holiday season, mobile commerce is surging as more people become comfortable using applications on their phone to compare prices or simply shop when not at home or at work. All Things D

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