The advocacy organisation Autism Speaks estimates there are hundreds of apps built for use on iOS devices, specifically for autism. A search of the Apple iTunes store brought more than 580 autism-related apps, while an Android Market search for autism apps yielded about 250 results.
"The more we dig, the bigger the rabbit hole is and we're starting to think tech is a really big key for how we can develop therapies quickly," said Marc Sirkin, vice president of social marketing and online fundraising for Autism Speaks.
However, the organisation is cautious about the iPad's popularity. Its quick ascent means no one has actually studied which apps are of therapeutic benefit. Sure, Sirkin said, parents may hear anecdotal stories of apps completely changing a child's life, but there is no measurable proof yet that the apps really work.
"The challenge with iOS apps is a lot are developed by well meaning parents but under no guidance with autism experts," Sirkin said. "For us, it brings in questions as an evidenced-based organisation and we're starting to ask: Does any of this actually make any difference... the danger is that the iPad becomes a really expensive toy."
But some parents are OK without the proof just yet. Eric Tanner, the father of an 8-year-old with autism, said what the iPad really offers is accessibility and hope that a better life is possible for his child.