paying dividends in the mobile market 35 million monthly smartphone users according to the report new data 35 million monthly smartphone users 35 million monthly smartphone users eMarketer news per eMarketer Instagram surpassed Twitter per eMarketer growth in the US is particularly impressive new data Instagram surpassed Twitter smartphone audiences 35 million monthly smartphone users about two-thirds women says Instagram surpassed Twitter growth in the US is particularly impressive eMarketer study new numbers eMarketer growth in the US is particularly impressive eMarketer Instagram surpassed Twitter forecasts sharing some data 34.6m Americans accessed Instagram at least once a month Instagram surpassed Twitter report from eMarketer 35 million monthly smartphone users