It has become modern to use mobile devices at an early age. The study aims to understand the way young children interacts with mobile devices during the first 4 years of life and how mobile devices can help parents gain learning benefits for the youngest children. In order to meet the purpose of the research there were several formulated questions concerning how the stage of children’s development can affect the possibility of interaction and learning with mobile devices and what advantages and disadvantages the parents discovered during their children’s usage of mobile devices. The relevant theory was presented regarding children’s physical and cognitive development from 0 to 4 years old. The mixed method approach (survey and interviews) was effective enough to understand how the children usage of mobile devices differs from year to year as they become older. There were some recommendations for the parents that were presented as well.