Google Shopper is a mobile app to scan an item at the store and see if you can order it cheaper online via smartphone especially andriod-based. Now Google Shopper is also available for the iPhone and iPod touch.
You can use Google Shopper with your device’s camera to scan a barcode or cover art for books, CDs, or DVDs. You can also tap the Voice Search button and tell Google Shopper what item you’re looking for. Or if you want to be old-fashioned about it, you can enter a search query in the text box.

Search results can be sorted by price, relevance, or seller rating. You can add a star to an item to find it again later. And you can check availability at local stores or online shops. Google Shopper also shows you product reviews and other details when available.
The app is currently available for free in the App Store for both iPhone 3GS and iPhone 4 running iOS 4.0 or newer. Android users can grab the app from the Android Market.
Harriet
Feb 02. 2011
I hadn’t heard of Google Shopper so thanks for sharing that with your readers. And the iPhone/iPod Touch application sounds like a great idea! I’ll just have to buy an iPod Touch now haha. I knew I should have gone with that over an iPod Classic despite the GB difference!
Harriet recently posted..The Debt Snowball Technique
Swamykant
Feb 03. 2011
Google Shopper seems to an excellent app. Good idea of buying iPod Touch now.