I think we mostly used "books" on the computer at that stage (LR or PowerPoint) for my son's reading. For some reason, he was more eager to read aloud when it was on the computer screen. Soon enough...he was much more comfortable reading and we could use regular children's books (Dr. Suess Go Dog Go and Hop on Pop, etc). I haven't looked at the BOB books, but we do have the ipad app for it

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