Dec. 14, 2011 at 10:37 AM ET

If you're on an Android phone, it's highly likely you're checking Facebook on it. The social network dominates app usage on Androids, according to a recent Nielsen report.
Facebook is second only to the Android Market in usage on the phones, across all the age groups measured by Nielsen, edging out Gmail, Google Maps and YouTube. Only in the 35-to-44 age range does Facebook tie with Gmail.
Across all age groups, starting with 18-year-olds and ending with 44-year-olds, more than 50 percent of those polled using these apps.
In a similar report released in September, Facebook was in the thick of things, but sandwiched mostly between Gmail and Google Search. Also that month, Nielsen released another report that showed how dominant Facebook was in general, with Americans spending 53 million minutes on the site. (Second place Blogger didn't even break the million-minute threshold.)
Back to this current app report, two games also break into the Top 15: "Angry Birds" and "Words With Friends" (a game Alec Baldwin has now made famous, if it wasn't before). The latter seems most popular with the youngest set polled by Nielsen.
The only other Web-based email service that broke into the top 15 was Yahoo Mail, while the Amazon Appstore also saw more shopping potential as it stretched across the ages.
So what apps do you use most often on your Android?
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