It is a classic tic-tac-toe game based on Harry Potter theme. You get to choose whether you start the game as a muggle or as a witch / wizard. If you lose a game, Moaning Myrtle annoys you with her moan. If you win, you get assigned to a new house ( Griffindor / Hufflepuff / Slytherin / Ravenclaw ) and you earn points for your current house.
This app gives a magical experience along with a classic game. Hope you enjoy it!