Food calories. With this app you'll be able to know nutritional information about the food you're planning to buy or eat. It's a must on diet periods, while you're doing the shopping or just ordering on restaurant.
Proteins, fats and carbohydrates, you're covered! Complete calorie table.
It allows you to sort by calories or macronutrients, useful to know which meat, veggies or fish has more fats.
Furthermore, you can suggest to add any food you don't find on the app.