“…A series of focus groups with young people (aged 15-16 years), which explored preferences in relation to mental health promotion apps, highlighted that "content should be made fun and interactive through the use of pictures, music, videos and games" [19]. Subsequently, another group of researchers investigated the degree to which the content of mental health promotion apps aligned with young people's media preferences, discovering an overreliance on static content, that is, written text, and recommended more visual and interactive solutions [20]. Existing research did not investigate the degree to which these issues are a consequence of how PPI principles are translated for digital platforms, as opposed to being rooted in the PPI principles themselves.…”