Lexico Comprehension is an application that develops the language of the child and the adult through play, focusing on my ability to comprehend and remember written and spoken words. This application is characterized by its simplicity; Its questions are written and read clearly so that younger children can use it. This app is also used to treat language disorders in people who have had a cerebrovascular accident or cerebral concussion. The subject can use it alone or with the help of another person, to improve his linguistic competencies. An application works as follows: Each exercise contains a set of questions, and the subject must find the appropriate answers to them, by dragging the card on the right to the appropriate image, and so forth until the end of the exercise, and you can also press directly on the appropriate image. Each level includes 5 different games, and completed exercises are recorded in order to keep track of developments. The Lexico Understanding 1 Pro application contains all levels