Utilities: Google
When it comes to Android, it should come as no surprise that Google rules the roost. Of the top five Android apps, only one was developed outside of Google, and that's Facebook's. The other four in descending order according to Nielsen: Android Market with 90.5% reach, Google Maps (74.6%), Gmail (74.5%) and Google Search (71.9%).

Last updated September 26 2011: 12:05 PM ET
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