Hlídač Shopů is a Chrome extension developed by Apify, Keboola, and TopMonks. It is a free add-on that falls under the category of Browsers and the subcategory of Add-ons & Tools.

This extension allows users to verify if they are truly getting a discount when shopping in the most popular Czech e-shops. By displaying the historical price development of a product throughout the year, Hlídač Shopů enables users to determine if the current price is as advantageous as claimed by the e-shop.

For each product, the extension showcases a graph illustrating the evolution of two prices: the selling price and the original price, which is crossed out to calculate the discount. Currently, Hlídač Shopů supports 20 Czech and 9 Slovak e-shops.

With Hlídač Shopů, shoppers can make informed decisions and ensure they are getting the best deals possible. It is an invaluable tool for anyone looking to save money while shopping online.