Foods consumed by children without parental supervision are not always healthy, which can cause to disease especially digestive diseases. Children should have knowledge about what is happening in their digestive and reaction after consuming food, so that they can avoid consuming bad food for their health. The medium used to convey it through games and activities is a mobile application app called NomNom. Research conducted through field and references studies about children favorite character and similar mobile apps. The character and design in accordance with a simple yet attract the children's attention.