Target's Cartwheel Facebook-connected discounts app has 7 million users

"Target’s Cartwheel has surpassed 7 million users and was recently updated with enhanced social features as the shopping application celebrates its one-year anniversary.
The app has proven to be a bigger success than expected and a much-needed one, at that, following Target’s massive data breach late last year that has kept away some shoppers. Key results for Cartwheel include that most users continue to use the app after their first redemption, with active users on average increasing their trips and spend at Target by nearly 30 percent, driving hundreds of millions of incremental sales from these households."

Source:  Mobile Marketer, 28th May 2014