This document summarizes a proposed mobile app called One-Stop Shop that allows users to search and compare prices across multiple online shopping websites from a single interface. The app aims to make online shopping more convenient and affordable by notifying users of price drops and allowing them to set price alerts. Key features include searching and comparing prices from many websites at once, setting price alerts, and getting notifications when prices change. The app is available for free with limited features, or a premium version can be purchased for $5 for expanded functionality.