"Inner Calm x VR" App is specially designed and developed for the "Use of Virtual Reality Technology for Enhancement of Psychological Treatment Protocol" pilot project undertaken by the Social Welfare Department (SWD). Service users who participate in the project can revisit via this mobile App the virtual scene(s) created in the course of psychological treatment to access the safe, comfortable inner space for self-calming, as well as for strengthening self-regulation abilities in the face of stress. The App also provides useful resources on mental well-being produced by SWD.