The vast majority of users on Twitter do not sit at their PC or Mac when they tweet, they do it from your phone.
The last figures from Twitter itself says that the vast majority of the site’s users are coming from mobile devices. All the 78 percent of monthly active users, checking out the latest tweets via smartphones or tablets.
The growth of Twitter’s active users has been stagnant in recent statements, but in the last quarter got Twitter 5.8 percent more active users, and it is a bit better than the quarter before.
However, it has not been enough to stop Twitter’s stock from falling by over nine percent on the stock exchange. Twitter, however, can boast that they have since mid-2010 has received more than six times as many users.