This is a beautiful and fun app, designed especially with the sort of visuals that kids love.
Playing language games with Boing (an adorable sea creature alien thing... I actually have no idea what Boing is...) is a ton of fun for the kids, but not irritating to adults. It's cute.
The games are very well thought out; just enough game to be fun and rewarding, but also a lot of educational value. Getting grammar and sentence structure explained to young children can be really difficult. This app bypasses that by SHOWING them and letting them learn - by playing! And, is there any better way to learn?
Compatible with iPhone, iTouch and iPad. Requires iOS 6.0 or later
Comes with in-app purchasing.