WHAT ARE THE RATINGS?[1]

Here are descriptions of the ratings, straight out of iTunes.

4+ Applications in this category contain no objectionable material.

9+ Applications in this category may contain mild or infrequent occurrences of cartoon, fantasy or realistic violence, and infrequent or mild mature, suggestive, or horror-themed content which may not be suitable for children under the age of 9.

12+ Applications in this category may also contain infrequent mild language, frequent or intense cartoon, fantasy or realistic violence, and mild or infrequent mature or suggestive themes, and simulated gambling which may not be suitable for children under the age of 12.

17+ You must be at least 17 years old to purchase this application. Applications in this category may also contain frequent and intense offensive language; frequent and intense cartoon, fantasy or realistic violence; and frequent and intense mature, horror, and suggestive themes; plus sexual content, nudity, alcohol, tobacco, and drugs which may not be suitable for children under the age of 17.