The need to complement the offer of applications in the Ubuntu Touch store represents an opportunity to develop innovative applications of interest to the community of potential users. This article describes the work carried out within the scope of a master's thesis where an open-source application was developed to monitor the calories consumed daily by a user. As a development process, Scrum Solo was used. The application's functional and non-functional requirements were defined by several product owners, all of which were implemented. After a period of preliminary tests, it was concluded that the developed application presents relevant and differentiating features from other similar applications available in the Ubuntu Touch store.