Analytical Plan
All quantitative data were managed and analyzed using IBM SPSS Statistics version 28. Means for continuous variables and frequencies for categorical variables were calculated to describe the participants at baseline. App usability and acceptability were based on descriptive statistics from the app analytics and acceptability measure. For example, evaluation responses are reported as the percentage of users who completed the posttest survey. SUS results are reported as an aggregate score, with a score of ≥50 indicating that the app is acceptable [