The key aim of this guideline is to present recommendations based on a critical evaluation of the evidence on emerging digital health interventions that are contributing to health system improvements, based on an assessment of the benefits, harms, acceptability, feasibility, resource use and equity considerations. For the purposes of this version of the guideline, the recommendations examine the extent to which digital health interventions, primarily available via mobile devices, are able to address health system challenges along the pathway to UHC. By reviewing the evidence of different digital interventions against comparative options, as well as assessing the risks, this guideline aims to equip health policy-makers and other stakeholders with recommendations and implementation considerations for making informed investments into digital health interventions. -- From the WHO Digital Health Guidelines