Innovative tool for programming on the iPad.
Terrific tool for learning speedy math tricks.
Excellent tutorials on math, humanities, and more, for free.
Popular, trusted resource covers mature topics responsibly.
Hangman meets Scrabble, against online opponents.
Brain trainer puts your mind to the test, but it's harsh.
Superb Scrabble clone; open chat makes it for teens and up.
Fantastic version of board classic with lots of tools.