These are some of my favorites apps for apple and android that can be utilized in a special education environment.
Website: http://atozteacherstuff.com/
Paid iPad app: https://itunes.apple.com/us/app/speech-journal/id436945985?mt=8&uo=4&at=10l6SU
Paid iPad app: https://itunes.apple.com/us/app/storybuilder-for-ipad/id377631532?mt=8&uo=4&at=10l6SU
Paid iPad app: http://itunes.apple.com/us/app/choiceworks-visual-support/id486210964?mt=8&uo=4&at=10l6SU
Paid iPhone app: http://itunes.apple.com/us/app/choiceworks-visual-support/id486210964?mt=8&uo=4&at=10l6SU
Paid iPad app: https://itunes.apple.com/au/app/felt-board/id492342753?mt=8&uo=4&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/see.touch.learn./id406826506?mt=8&uo=4&at=10l6SU
Paid iPad app: https://itunes.apple.com/us/app/see.touch.learn-pro/id467924373?mt=8&uo=4&at=10l6SU
Paid iPad app: https://itunes.apple.com/us/app/icommunicate./id364186415?mt=8&uo=4&at=10l6SU
Paid iPhone app: https://itunes.apple.com/us/app/icommunicate./id364186415?mt=8&uo=4&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/alphabetics-free/id610411757?mt=8&uo=4&at=10l6SU
Paid iPad app: https://itunes.apple.com/us/app/alphabetics/id621297604?mt=8&uo=4&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/alphabetics-free/id610411757?mt=8&uo=4&at=10l6SU
Paid iPhone app: https://itunes.apple.com/us/app/alphabetics/id621297604?mt=8&uo=4&at=10l6SU
Free Android Phone app: https://play.google.com/store/apps/details?id=air.com.fordyslexia.icanalphabetics
Paid Android Phone app: https://play.google.com/store/apps/details?id=air.com.fordyslexia.icanalphabeticsfull
Paid iPad app: https://itunes.apple.com/us/app/clicker-docs/id575608215?mt=8&uo=4&at=10l6SU
Paid iPad app: https://itunes.apple.com/us/app/voice4u/id339916109?mt=8&uo=4&at=10l6SU
Paid iPhone app: https://itunes.apple.com/us/app/voice4u/id339916109?mt=8&uo=4&at=10l6SU
Paid Android Phone app: https://play.google.com/store/apps/details?id=com.voice4uaac.android.voice4u