Bad Dog Apps has launched BdPricer for the iPhone and iPod touch. The shopping companion app tracks item prices live or with data from saved searches, and uses a directory of 15 major product categories containing over 3,000 items. The app is intended for checking prices before shopping, or alternately negotiating a better deal; listings also contain features and reviews, plus the option to buy goods online.

BdPricer requires an Internet or 3G connection for live pricing, and is available for $5 at the iTunes App Store.