Unable to download in app purchases – Autism iHelp – Comprehension Review

I really like the Autism iHelp apps. I use them all the time with my students with ASD and PDD. Unfortunately, when I try to download the in-app purchase to unlock all the sets, I receive a message stating that iTunes cannot be reached. I have not had this difficulty with other iHelp apps.
Review by S.L., Speech Pathologist on Autism iHelp – Comprehension.