Shopping is a huge part of our daily life!Consumers want to find the product that best fits their needs and wishes, to find the products that they find and the ones that sell the cheapest, and to get rid of the worry about the price I bought the product after shopping.Consumers who use the Price Rhythm see the cheapest seller of the products and the current price evaluation. Also, the general price history of the product is shown. The current price assessment is made on multivariate time series analysis on price history data from different vendors. On the basis of reliability and transparency, which is one of the most important elements of our vision, price histories on the basis of vendors are shared with users.When choosing an electronic product, the consumers shared that they first determined the price range according to their budget, and then they tried to choose the most suitable product among the candidate products by filtering the products according to their needs. However, they stated that they had difficulty in making decisions in this process and that they had an unsatisfied shopping experience. Here, the Price Rhythm, a smart assistant, makes this process easier and faster.Our target audience is the consumers who pay attention to the price-performance balance and seek to find the product that best suits their needs while purchasing electronic products on the internet.Price Rhythm is completely free to consumers!