Cranio-maxillofacial (CMF) surgeons who want to specialize in cleft surgery as well as the interdisciplinary operation team should be able to participate in the operation-planning of cleft lip and cleft palate patients (CLP). So far, there are various forms of web or smartphone applications that summarize the knowledge of the CLP-surgery, but they do not account for current patient examples. In an interactive application, especially for trainees should be given the opportunity to revise their knowledge in a virtual 3D space and using current cases to practice the planned surgical intervention. An easy-to-use technology comes to the fore to facilitate interdisciplinary discourse. Trainees benefit especially from the experience of professionals, such as the cooperation partner Prof. Dr. med. Dr. dent. Katja Schwenzer-Zimmerer from the University Hospital Graz.