Principal findings
depression
This study tested the efficacy of Coping Camp, a stress-managing app based on stress inoculation training (SIT), among Chinese school adolescents. The primary objective was to determine whether 11 weeks of use reduced stress levels. Secondary objectives included assessing acceptability in high school settings, reducing negative mental health outcomes, improving mental health wellbeing, and changing stress coping strategies. Results showed a significant reduction in levels of stress and depression. However, Coping Camp was not effective in improving mental health wellbeing or changing stress coping strategies.