Words With Friends Classic is the word forming game.
App Store Description:
Unleash your vocabulary and play Words With Friends, the world’s favorite crosswords puzzle game!
PLAY the word-building puzzle game you know and love
USE your wits and strategize to make the best moves
CONNECT with your friends through in-game chat
DISCOVER new friends instantly with random opponent matchmaking
UNLOCK your win/loss record and other STATS to see how you compare against your opponents*
ACCESS your game across your iPhone, iPad and/or iPod Touch
* Requires in-game purchase to unlock