Mobile skill teaching software has been developed for the parents of the children with intellectual disability to be used in teaching daily life skills. The purpose of this research is to investigate the effectiveness of the mobile skill teaching software developed for the use of the parents of the children with intellectual disability. In accordance, the effectiveness of the software has been tested using multiple probe design with probe conditions across subjects' research methodology which is one of the single subject research models. Four adults with intellectual disability and their parents participated in the study. The parents participating in the study taught their children with intellectual disability how to cook cheese omelet with the use of the software. The data obtained as a consequence of the experimental study suggests that the activities carried out by the parents with the use of the software were found to be effective.