Background: Healthcare teams seek to alleviate symptoms of children that occur as a result of their disease and treatment. To support a person-centric approach to care, a mobile-based app, Color Me Healthy, was developed for children record their symptoms. The purpose of the study is to identify parents' perceptions of the revised Color Me Healthy app's perceived usefulness and perceived ease of use. Methods: Fourteen parents (11 mothers; median age 38.5 years) of children with cancer 6-12 years of age evaluated the app. Usability evaluations included audio recorded interviews which were analyzed qualitatively guided by following the Technology Acceptance Model (TAM). The TAM indicates that the perceived usefulness and the ease of use of technology determine its subsequent adoption. Interviews were transcribed and transcripts were uploaded into Dedoose software for analysis. Transcripts were reviewed to identify statements in which parents related aspects of the app's perceived usefulness or ease of use. Statements were further coded using specific constructs set forth in the TAM. Results: Preliminary analyses are complete for seven parents. Statements from all parents supported the relevance of the app either for themselves or their child and the ability of the app to demonstrate meaningful results, providing evidence of perceived usefulness. Statements from all parents also reflected self-efficacy in using the app, providing evidence of its ease of use. Parents' statements provided support for the perceived enjoyment of the app (n=4 parents) and the playful nature of the app (n=4 parents). Conclusion: Preliminary analyses indicate that parents perceived the Color Me Healthy app as useful and easy to use for the child to report their symptoms and for the parent to interpret their responses. Next steps include evaluation of the revised app's clinical utility to support symptom reporting and subsequent initiation of interventions to alleviate symptoms.