If you have children with Autism ,whether they have started speaking or have not started speaking yet. I would like to share you that please start AAC. It can help your child to communicate and share their internal thoughts, needs, wants and many other things. I am using Avaz app and Proloquo2go apps with my children in school. it is really wonderful to see them when they expresses their thoughts. it is really a great fun.
Due to more interest and concentration towards technology, children would love to use this app, though you need to help them initially through modelling them how to use this app. They will also do the same thing and so learning starts.
I will come back with the goals of AAC after sometime.