At that time , I was surprised how many people were unsure whether or not they had a smartphone . Survey says ` ` just over half of cell owners '' have smartphone or use smartphone apps . Biggest growth in smartphone ownership was among adults aged 18 - 24 , it says . It says highest growth in mobile use occurred in the lowest income bracket . Amy Gahran : Smartphones may be becoming norm , but benefits may not be distributed evenly .
Survey says ` ` just over half of cell owners '' have smartphone or use smartphone apps . Biggest growth in smartphone ownership was among adults aged 18 - 24 , it says . It says highest growth in mobile use occurred in the lowest income bracket . Amy Gahran : Smartphones may be becoming norm , but benefits may not be distributed evenly .