Late last year, I purchased the App “Proloquo2Go”, on the recommendation of Mr 3’s Speech Therapist. It was expensive. But worth it!
It’s programmable, so you can make words (buttons) and phrases and sentences, categorise them according to high-interest activities (we have one folder for Playstation games and a separate one for Wii games, and then folders for breakfast, lunch, etc etc) and if the photo to accompany the word isn’t already in the App’s library, you can take a photo of the concept, and use that.
One downfall is that you can’t program your own voice – but that’s a pretty minor disadvantage, compared to all the positives.
Worth the $200? To hear my autistic boy move from being non-verbal to verbal?!