Many children with CAS can benefit from AAC. I almost always use some level of AAC with children with CAS. I usually use a visual reinforcement board so the child can select what s/he wants to work for during therapy (so there isn't a breakdown in communication), I have used the Speak for Yourself App on the iPad with another client because she needed more support, I also like to use choice boards and star charts, first/then visuals, etc.