You are shopping, and you want to buy something, but the price is a little higher than you expected. So you decide to check if there is a better price elsewhere. You search, and you find a store that sells the same product, with a better price. You are about to go there, when you realize that the product is only available in one size, and you have to return back to the store to get another one. You have gone too far, and it is time to pay. So you use your phone to scan the barcode, and you get back a percentage of the money you spent on the product.

The app is Dinheiro na Nota Cashback. It is an initiative created to allow consumers to receive part of the money they spend on their purchases.