According to comScore data, an average user in the United States spent less than 3 minutes a day using Twitter on mobile devices in the fourth quarter 2015 – Facebook sees 10 times that engagement, as our chart illustrates. To make things worse, Twitter’s mobile engagement has been declining for seven straight quarters until the end of 2015 and supposedly continued doing so in the first three months of 2016.
You will find more statistics at Statista