This is an app for the data collection of an empirical study conducted by the AiDlab, Hong Kong Polytechnic University, which is supervised by the Prof. Hoorn Johan (https://www.sd.polyu.edu.hk/en/meet-our-staff/johan-hoorn). The participants should download the app and input the assigned number to start the data filling. Therefore, they are not allowed create their own account. This app will contribution to the academic filed about the correlation between depressive symptoms and interpretation bias modification.