Future research
Adherence guidelines, as they exist for medication [In future, the fidelity of the intervention could additionally be rated by using video recording to allow a more objective fidelity rating. Furthermore, adding qualitative data may be beneficial to better understand why there were differences particularly concerning counseling session duration and content fidelity. Hence, adapting a mixed methods research design could be a recommendation for future research.For a more comprehensive analysis of the implementation and to better understand the use of technology in this intervention, the use of the mobile application, timing of the receipt and reading of the text messages would need to be evaluated in future.