A user opens the app, confirms all the permissions the app requests. The user then creates an account using the following options: Email and Password or QR Code. Once logged in, the user can search for product information they want, navigate to the supermarket using Wise or Google Maps and create the cheapest shopping list. Each list can be stored in the database. The list can be updated, added, deleted and synchronized with other devices connected to the same user. The user has access to view all the lists he has created. He can share on WhatsApp or SMS. In the app, the user can update his personal details, as needed. The app provides a perfect user experience, so that the grocery list created will be the cheapest for that user, and if he chooses otherwise, then he will always know how much the new list will cost him. Trying to bring the cost of the most convenient list closer to the cheapest creates interest.