Study design
This experimental research followed a pre-test, post-test design and was conducted at two comprehensive urban health centers affiliated with the Kerman University of Medical Sciences in southeastern Iran. The study included two groups: an intervention group and a control group.According to the academic regulations in Iran, a bachelor's degree in nursing typically consists of four years of study, which includes both theoretical and clinical coursework. During the final year of the program, nursing students participate in an internship program that aims to prepare them for professional nursing practice. During this internship, senior students work under the supervision of nurse instructors in various clinical settings. To ensure effective clinical education and address any educational challenges faced by the students, the school of nursing appoints faculty members from each educational department based on the students' credits. In Iran, cultural competence, capacity, and humility have received minimal attention in the nursing education program and are not formally addressed in the official curriculum. Students continue to learn about cultural care through an informal program. Similarly, nurses acquire cultural competence and humility through their work experience in healthcare settings [In this study, a mobile app-based cultural care training program was developed specifically for senior undergraduate nursing students. The development process followed the five stages of the ADDIE instructional model, which included analysis, design, development, implementation, and evaluation.