The Self-management Smartphone Application for Cancer Survivors, ReLive: Development and Usability Testing

ReLive is a nursing theory-driven and evidence-based smartphone application that aims to promote self-management among cancer survivors. It has been designed to display symptom measurement results in different traffic light colors, depending on the severity of a user's symptoms (eg, severe symptoms are presented in red). Therefore, it is easy for users to draw inferences about changes in their symptoms. Further, users can simultaneously set several physical activity goals and monitor their performance. Social support, self-efficacy, and quality of life of a user can also be monitored regularly. This study investigated the usability of this application. An iterative formative test, including a cognitive walkthrough and face-to-face interviews, was conducted. Participants were seven individuals with a diagnosis of chronic myeloid leukemia. The ease of use and understanding, acceptability, and usefulness of the application were evaluated. The results revealed that the participants had evaluated ReLive positively. This program could be used as an intervention to deliver health information and manage their performance. Further research is needed to assess the application's effects on self-management among survivors of various types of cancers.