Reading the books, the books are not as easy to navigate through for my daughter(8) who has trouble reading, there is no button to read the pages so when she is struggling she gets frustrated with it, so you have to sit with her through it so it's not an independent activity.
For my son (3) pre k the activity is definitely not independent, he himself can not read and the pages and the math was great the first day it was simple things he sees daily, but the second day it was completely different it was asking for the actual words for number and what 3 year old reads actually words the number it self yes he can do that.