Eureka! Institutional Repository

Nowadays, smartphone applications are frequently used to change and track eating habits. However, over time, the adoption rate of these applications has been quite low. The goal of this research is to review the principles of the persuasive and universal design models, with the goal of creating a pleasant User Experience (UX) that will contribute to users' long-term engagement with food applications. Through proposals to redesign the PROTEIN app, the article investigates how to incorporate these concepts in five leading nutrition apps and their applicability in mobile app design. Then, using a seven-point Likert scale, 25 individuals appraised the aesthetics and usability of the existing and redesigned PROTEIN app. The results revealed that the redesigned version of the application received the most positive feedback. As a result, it is stated that adding UX principles into the design of nutrition apps increases the possibility of long-term user adoption.