Authors’ contributions
MH
ML is the principal investigator of this randomized controlled trial. ML conceptualized and designed the study together with HH and PH. CA was responsible for adapting and translating the content of the app prior to study start under supervision of HH with contribution from MH and ML. CA together with MH, and HH coordinated the data collection. CA conducted the statistical analyses under the supervision of MB (PhD in statistics) and MH with contributions from CDN. MB also contributed with his expertise in Bayesian inference. CA drafted the manuscript under close supervision of ML. All authors read and approved the final draft of the manuscript.