A mobile shopping decision agent application is disclosed. A wireless-enabled (e.g., WiFi) device that uses three or more routers to locate the exact position (e.g., aisle number, shelf, etc. in a store) of a user operating the wireless-enabled device to provide the user with assistance in shopping (e.g., comparison, order online, read technical specifications, read customer reviews, etc.) for a product, and allows the user to purchase the product on the spot from the merchant (or another competing merchant) direct from his/her account with a bank online or at the merchant POS/checkout. In addition, application also may use various social networking features (e.g., product recommendations from friends, recommendations from public at large, wish list, etc.) to enhance the customer's shopping experience.