The Purpose of the Study is to Investigate if a Smartphone App Combined With Internet Based Cognitive Behavioural Therapy (ICBT) Leads to Improved Symtoms in Depressive Adults on Antidepressive Medicine, Compared to a Wait-list Control Condition

The purpose of the study is to investigate if a smartphone app combined with internet delivered cognitive behavioural therapy (ICBT) leads to improved symptoms in depressive adults on antidepressive mediation. The participants in the treatment group will get access to a smartphone app based on CBT-principles for 9 weeks. They will also get access to an internet platform with extra treatment material based on CBT and receive therapist support on demand. Participants will be recruited in Sweden with nationwide recruitment.