iPad Apps for Struggling Readers by Diana Petschauer and the Center on Technology and Disability. This list includes a variety of needs, from beginning reading to older students. It also includes some math apps as well.
Apps for Dyslexia and Learning Disabilities put together by Dyslexia Help at the University of Michigan. These apps have been reviewed very carefully, and the site also offers a search engine for specific areas of concern!
Voice Dream Reader and Voice Dream Writer are two apps created by Winsten Chen, and named one of the best new apps by Apple for struggling and dyslexic readers and writers. Voice Dream Reader is a text-to-speech that also works on Apple watch. Voice Dream Writer is text-to-speech proofreading, a spell checker, and powerful word processor all in one!
iPad App Toolbox for Special Education by Craig Smith, is a collection of apps for students on the autism spectrum. The apps work cover communication, social skills, emotional regulation, and academic needs.