Twitter had 100 million active users logging in at least once a month and 50 million active users every day. In an article published on January 6, 2012, Twitter was confirmed to be the biggest social media network in Japan, with Facebook following closely in second. comScore confirmed this, stating that Japan was the only country in the world where Twitter leads Facebook. On March 31, 2014, Twitter announced there were 255 million monthly active users (MAUs) and 198 million mobile MAUs. In 2013, there were over 100 million users actively using Twitter daily and about 500 million Tweets every day,
Twitter bot called Botometer (formerly BotOrNot), which scores Twitter handles based on their likelihood of being a Twitterbot. One significant academic study estimated that up to 15% of Twitter users were automated bot accounts. The prevalence of Twitter bots coupled with the ability of some bots to give seemingly human responses has enabled these non-human accounts to garner widespread influence. A subset of Twitter bots programmed to complete social tasks played an important role in the United States 2016 Presidential Election. Researchers estimated that pro-Trump bots generated four tweets for every pro-Clinton automated account and out-tweeted pro-Clinton bots 7:1 on relevant hashtags