Facebook Surpasses Google Maps to Become the No. 1 Mobile App in the U.S.

There’s a new No. 1 mobile app in town, according to comScore. Its latest Mobile Metrix ranking shows that Facebook’s mobile app boasted 85.6 million unique visitors in December. Up until mid-September, Google Maps held the No. 1 spot; in December, it had 74.6 million visitors, making it No. 2. Google Maps’ sudden decline in October came courtesy of Apple’s decision to replace the search giant’s maps app with its own Apple Maps on iOS 6