Comparison shopping is comparing the price of products or services from different vendors before buying.
Five easy-to-use apps for comparison shopping
RedLaser
ShopSavvy
BuyVla
ScanLife Barcode & QR Reader
ShopAdviser
Amazon
Google Shopping
Coupons
BizRate
ShopAtHome
NeTag
Woot
Shopping
Shopzilla
Shop
FatWallet
Pronto
PriceGrabber
ShopLocal
DealNews