The app makes simple proportions that we usually find ourselves doing whenever we want to reproduce a recipe taken from a recipe book. In a screen we can calculate the weight of the ingredients of a recipe suitable for the size of the pan we have available, different in diameter to the original one. Just enter the diameter of the cake pan of the original recipe and the weight of the ingredients of the original recipe, by varying the sliders that will indicate the diameter of our cake pan, the weight of the ingredients will also adjust. In another screen, we can calculate how much our rectangular pan is equivalent to a round one. In another screen we can calculate the weight of the ingredients of a recipe, based on the weight of a single ingredient (e.g. we do not have enough flour to develop the original recipe but we also want to do it using all our available flour). Just enter the weight of the ingredients of the original recipe and move the cursor until the weight equal to that available to us appears in correspondence with the ingredient we have selected, all the others will be proportionate. In another screen we can calculate the weight of the ingredients to be used for a given recipe based on the number of people we have at the table. Just enter the weight of the ingredients of the original recipe and for how many people it is structured in addition to the number of people you will have at the table of course.