Reducing Depressive Symptomatology With a Smartphone App

The aim of this study is to test a newly developed app, firmly grounded in Cognitive Behavioural Therapy (CBT) theory of depression, to determine primarily if this app is clinically useful in decreasing moderate depressive symptoms when compared with an active placebo. Additionally, we are interested in the app\'s potential to contribute to the reduction of general negative affect, increasing positive affect, and boosting satisfaction with life. Last, but not least, we aim to verify if the usage of the tested app can modify depressogenic cognitions.