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 out its mobile developer products. On April 18, 2013, Twitter launched a music app called Twitter Music for the iPhone. On August 28, 2013, Twitter acquired Trendrr, followed by the acquisition of MoPub on September 9, 2013. As of September 2013, the company's data showed that 200 million users send over 400 million tweets daily, with nearly 60% of tweets sent from mobile devices. On June 4, 2014, Twitter announced that it will acquire Namo Media, a technology firm specializing in "native advertising" for mobile devices. On June 19, 2014, Twitter announced that it has reached an undisclosed deal to