I have a 5-year-old son with autism who cannot speak and we go to speech therapy to overcome it. Therapy fees are a bit expensive for us and we are looking for alternatives. We have found an app designed for children with autism called otsimo and they have an app about speech. We started using it and it was really useful. I would like to share the app's site with you Otsimo | Special Education for Special Children | Autism, Down Syndrome …, hopefully it will be useful for you.