Participant timeline {13}
anxiety, depressive symptoms
SECONDARY
Eligible participants will complete the pre-intervention assessment including measures for the primary outcome (depressive symptoms) and secondary outcomes (generalized anxiety symptoms, social anxiety symptoms, RNT) of the study. Consequently, participants will be randomly allocated to one of the three trial conditions. Participants in both active conditions (conditions (1) and (2)) will use the respective app for 6 weeks. Primary and secondary outcomes will be measured again at post-intervention (6 weeks after pre-intervention) and follow-up (18 weeks after pre-intervention). All participants will provide informed consent prior to data acquisition, randomization, and use of intervention apps. For an overview of the study procedure, see Figs. Schedule of enrolment, interventions, and assessmentCONSORT flow diagram