Santiago Romani Castroman has I.Q. Test (iTunes Link) for the iPhone, iPod Touch, and iPad in the iTunes App Store for FREE (regularly $2.99) for a limited time.

An intelligence quotient (IQ) is a score derived from one of several standardized tests designed to assess intelligence. The abbreviation “IQ” comes from the German term Intelligenz-Quotient, originally coined by psychologist William Stern.
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