In 2010 , Apple added “Special Education” as a category in the iTunes Store. In there you will find 100’s of free and paid apps for everything from reading and maths, emotional wellbeing, sign language to autism and many more.
Of course many of the “creation” apps are very powerful when working with students with special needs but for specific purposes you might find these lists useful.
Ipads for Special Education – Department of Education and Early Childhood Development. – A fantastic resource with lists of apps categorised into Organisational Apps, Communication and Assistive Technology, Reading, Writing, Maths, Art and Technology, Music and Song, References and Games Apps.