Funding for this research was provided by:
Received: 14 December 2020
Accepted: 12 July 2021
First Online: 28 July 2021
: Ethical approval was provided by Trimbos Institute’s Ethical Committee (2548425). Interview participants (qualitative data): Oral informed consent was recorded in a separate audio file. For quantitative (log) data from the app, the consent procedure. App users (quantitative data): During the installation process of the app, participants were asked to actively agree with the app’s privacy statement. The statement was drafted in understandable Dutch language, as lower literacy is more common among the lower-SES target group. If they agreed, they were asked again in a pop-up window whether they were sure. The privacy statement explained which data were collected, purposes of data collection (e.g., scientific research), and how users could have their data removed (i.e., by sending an e-mail). This procedure suffices the GDPR and Dutch privacy law requirements for consent.
: Not applicable, the manuscript does not include individual person’s data that can lead to identification of the individual.
: The authors declare that they have no competing interests.