Adding a smartphone app to internet-based self-help for social anxiety: A randomized controlled trial

Increasing access to treatment via smartphone apps is an important topic in Social Anxiety Disorder (SAD). ‘Challenger’ is an app promoting exposure exercises in daily life. The present study evaluated the additional benefit of using the app as adjunct to Internet-based unguided self-help for SAD. In a second step, we also tested how the app and the self-help programme (SH) should best be combined. 209 patients diagnosed with SAD were randomly...