The PeerTECH Pro app (Peer-and Technology-Supported Self-Management Training) was developed for people with a serious psychiatric condition (e.g. bipolar disorder, depression or schizophrenia). As it turns out, this vulnerable group is exposed to major health inequities. The app offers users the ability to ease the management of their mental and chronic health issues. This contributes to an improved quality of life, gives the patient more hope and generates more patient empowerment. It helps users of the app to break through their social isolation while stimulating collective mobilisation and knowledge transfer.