Social networking is a huge phenomenon and the always-on connectivity offered by smartphones has only accelerated the trend. According to a recent study conducted by Nielsen Research, Facebook has been found to be the most popular among used applications across a variety of smartphones including iPhone and Blackberry.

The only app that is more used is Google Maps for Android OS which is understandable since Google actively promotes its navigation system for Android.  Here are the top 5 apps on each of these mobile OS platforms based on their use in a 30 day period.

iPhone OS
1. Facebook
2. iPod/iTunes
3. Google Maps
4. Weather Channel
5. Pandora

Blackberry OS
1. Facebook
2. Google Maps
3. Weather Channel
4. ESPN
5. Pandora

Android OS
1. Google Maps
2. Facebook
3. Weather Channel
4. Pandora
5. Google Search

Other Smartphones
1. Facebook
2. Google Maps
3. Weather Channel
4. Pandora
5. Youtube

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