Grace App is a non-speaking, simple picture exchange system developed for people with Autism to communicate
Currently priced at £17.99 so an affordable way to trial symbol exchange on ipad/ ipod - a cheaper option than others. You are limited to their categories, but it is a good option to start with and if your child does not use highly sophisticated categories it may well be worth a try.
SERC / Newbridge School
Barley Lane Campus, 258 Barley Lane
Goodmayes
Ilford, IG3 8XS
SERC is a service and information centre brought to you by Redbridge.