The web application for children with diction problems, seeks to contribute to the reduction of a pronunciation problem known as dyslalia. The application can be used on any device connected to the internet, its main purpose is through exercises and dynamics integrated in it, improve the diction that children present in the range of 4 to 6 years of age. The methodology used is the development of iterations that allows reducing the risk that arises between the needs of the user and the final product due to misunderstandings during the requirements collection stage; having the advantage of carrying out the development in small cycles, allowing to better manage risks and deliveries. The web application for children with diction problems, in its first version, has had good results, highlighting its functionality and application, which has shown great acceptance by children, educators, experts and even parents, but about all because in the period of use of a month have begun to have improvements in the pronunciation of users (boys and girls).