The first years of children’s lives are the time when they intensively build multisensory integration, which refers to the correct reception of sensory information (for instance sight, sound, or motion) and learning adequate reactions in given situations. Sometimes disorders occur in the process. The project of this mobile application is both informational and educational in nature. The part directed to therapists contains patient databases and information about them, meanwhile the part aimed at parents helps to continue the therapy with the little patient at home. The therapeutic functions of the app are supported by colourful illustrations and animations. The project is based on the user experience approach.