How does your school stack up? There's an app for that.

The award-winning investigative journalism site ProPublica in 2011 released a project called "The Opportunity Gap." The project compared students at poor and wealthier schools across the country in terms of their access to advanced classes "that researchers say will help them later in life." ProPublica has now released new data that show not only how many AP classes are offered, but how often students pass those classes...and you access the info on the go via Foursquare. SPOILER: Michigan's AP pass rate is higher than the national average, but not by much.