Earlier this month at Legal Blog Watch, I wrote about the Law School 100, an iPhone app for aspiring law students that ranks the 100 best law schools in the United States. Now there is an app from the bar-exam prep company BARBRI that tests the legal knowledge of law students and law grads who are preparing for the bar exam.

The free app contains the “BARBRI Challenge,” a series of multiple-choice questions that test students on key concepts they learned (or were supposed to learn) in law school. The game can be played individually or in a multiplayer format. Upon completing the game, the player is given a score that can be used to compare against other players, either nationally or within the player’s law school.

The app is available only through the iTunes app store, which can be accessed through iTunes installed on a computer or through a iPhone or iPod Touch.