This thesis project studies the use and legitimacy of comparative advertising to offer a practical solution to save time and money while shopping. In particular, we start from the analysis of the most significant data collected through a survey aimed at understanding the habits and perceived problems of consumers when they shop. Subsequently, it is projected the development of an online platform that allows users to cope with the decrease in purchasing power that is being recorded in 2022 by reducing the actual costs of living that weigh more heavily on the family budget. The possibility of using comparative advertising to make product information accessible to consumers is being studied with a view to giving everyone the opportunity to make the purchase choice they consider best for themselves.