Just tried the games/activities. Looks fun.
I like your letterbord. It is simple and intuitive.
The other apps are a little less intuitive to me, but hey, that might be because I didn't get the needed instruction.
Anyway, I also see you use animation and such, which is stuff (like the letter animations) that I don't use often and could do more.
Nice to see....
Hope you visit my stuff at www.bolleboos.be too