The Apps We Can't Live Without

Average monthly users per smartphone app in the United States for 2013
Facebook86100000
Google Play60900000
Google Search59700000
YouTube55700000
Pandora Radio51600000
Gmail51300000
Google Maps50500000
Apple App Suite (iTunes, App Store, Game Center)49300000
Yahoo Stocks34100000
Apple Maps29500000
Sources: mashable.com