You already know that sexpert Amber Madison has written a book geared towards helping you determine whether or not all guys are a-holes. But guess what? There’s an app for that, too! Based on Madison’s data, which she gathered from over 1,000 guys in 10 US cities, the A-Hole Tester app for the iPhone ($0.99, itunes.apple.com) will help you figure out for certain whether your current dude is an a-hole.

Read Are All Guys Basically A-Holes?

Simply answer the test’s 18 questions and voila—the A-Hole Tester will calculate his A-Hole percentage, giving you a conclusive answer to that ever-elusive question. Even better, the app allows you to save and compare different guys’ scores so you can keep track of ALL of the a-holes in your life, and it also offers advice based on your results. Nifty! Snag it for the iPhone at the iTunes app store.

Lucia Peters is BettyConfidential's associate editor. She is (thankfully) not dating an a-hole.

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