Inclusion Criteria:  The main adult caregiver is able to provide care / support to a bedridden patient. Willingness to participate in the study. Basic knowledge of the Greek language such that the user can understand the intervention and be able to complete the self-administered questionnaire. Possession of a mobile Android or iOS device. The patient is bedridden for no longer than four (4) months. During the assessment for predicting the risk of patient PUs development, the score according to the BRADEN scale must be between medium to severe risk (≤ 14).  Exclusion Criteria:  The user does not have basic knowledge of the Greek language such that he/she is not able to understand the intervention or complete the self-administered questionnaire. Possession of a different mobile device other than Android and iOS or no possession of a mobile device. The patient is bedridden for four (4) months or longer. A mild risk score using the BRADEN scale (15-18).