The use of mobile applications has become a daily occurrence. Research has shown that three-year-olds are able to use certain mobile applications on their own. Using mobile applications can have a positive and negative impact on a child's development. Research on the use of mobile applications in children is a novelty in the field of research. Due to the lack of knowledge about the way and the frequency of using mobile applications in kindergarten children, I started to research. With this research I wanted to find out if kindergarten children use mobile applications and if they use them, what is the frequency of their use during the day. The research was conducted during the pedagogical year through an anonymous survey of the parents of children in the Kindergarten „Zvončić“ Našice. The results of the research show that kindergarten children use cell phones most often with their parents. The use of mobile applications is common among a large number of children (74%), with a survey showing that playing time through mobile app platforms lasts up to one hour during the day (61%), with a smaller percentage of children (22%) spending up to two hours playing and educating with mobile apps. Parents think they are average informed about the use of mobile applications and a smaller percentage (36%) think they are well informed. Children are most likely to use educational and entertaining mobile apps, and parents find the impact of the game using mobile apps positive for their child's development.