This app is very well build. The multi sensory approach is excellent executed. They hear the sound, they "see" the sound with a handcue, they see lips making the sound and they can practice the sound by recording their own voice and play games where you have to listen to the sound, or match the sound. This app is the only one my daughter likes to play at our home speech practice. She is 3 years old. She repeats the sounds and likes to hear the little stories. Love it!