The iTunes Store terms and conditions has about 17,637 words or about 26 generously large Web browser screen fulls. It has about 1744 unique words, 779 sentences, a lexical density of 16 percent and a readability score of 12.7 (which means it requires a greater than high school reading level, but not a law school graduate reading level).
Here’s a word cloud of the text from the fine people at Wordle: