Open Food Facts is an app that allows users to scan, find, and compare over . million food products. The app utilizes a free and open database called Open Food Facts, which contains a vast amount of information on various food products. Users can contribute to the database by adding pictures and data of products that are not already included. The app provides Nutri-Score and NOVA scores, which help users make informed decisions about the nutritional quality and level of food processing of different products. Open Food Facts is a collaborative and volunteer-run project that aims to promote food transparency and enable individuals to make better food choices. The app offers several features to help users decipher food labels and understand the information provided. It provides details on carbon footprint, packaging, nutritional scores, nutrients, allergens, labels, traceability information, and alcohol content for wines and beers. The grades and information provided by Open Food Facts are science-based and rely on peer-reviewed research. The project collaborates with research teams worldwide to improve nutrition research and benefit the global community. Open Food Facts is designed to work well in any condition, allowing users to add new products even with a bad or no internet connection. The app minimizes data and battery consumption by loading only the necessary information. Users can also use the app anonymously and export their scan history. Additionally, the app allows users to set up allergen alerts for specific products, helping individuals with allergies to screen their food choices more efficiently. However, it is important to note that the information provided may not be % accurate, and users should always double-check with the packaging. Open Food Facts is also available on the web, and users can contact the project team for any questions or feedback. The app prioritizes user privacy, ensuring that data is not sent online without consent.