Comment Team Umizoomi (Score 1) 165
My daughter worked all the way through this app on my iPhone when she was 4; If we get an iPad this Xmas, we're getting the Hello Kitty apps first.
We also have the pencil-n-paper Umizoomi boxes and some of the Hello Kitty workbooks and flashcards; this seems to make the transition to her PK class easier.