The survey really highlights just how much smartphone ownership trails traditional feature phone ownership, at least in the U.S. Nielsen’s study shows that 21% of American wireless subscribers have smartphones.
Still, even non-smartphone users have heavily embraced mobile apps. Nielsen’s survey indicates that the average number of apps that a feature phone user has on his or her device is 10, while the average number of apps a smartphone user has is 22.
Broken down even further, the average number of installed apps based on smartphone OS looks like this:

  • BlackBerry: 10
  • iPhone: 37
  • Android : 22
  • Palm: 14
  • Windows Mobile: 13