text: On January 28, 2013, Twitter acquired Crashlytics in order to build 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. , the company's data showed that 200 million users sent over 400 million tweets daily, with nearly 60% of tweets sent from mobile devices.
  During Super Bowl XLVII on February 3, 2013, when the power went out in the Mercedes-Benz Superdome, Mondelez International vice president Lisa Mann was asked to tweet "You can still dunk in the dark", referring to Oreo cookies. She approved and later told Ad Age in 2020, "Literally the world [had] changed when I woke up the next morning." This became a milestone in the development of commenting daily on culture.
  2014–2020
  In April 2014, Twitter underwent a redesign that made the site resemble Facebook somewhat, with a profile picture and biography in a column left to the timeline, and a full-width header image with parallax scrolling effect. That layout was used as the main for the desktop front end until July 2019, undergoing changes over time such as having rounded profile pictures since June 2017.
  In April 2015, the Twitter.com desktop homepage changed. Later in the year it became apparent that growth had slowed, according to Fortune, Business Insider, Marketing Land and other news websites including Quartz (in 2016).
  On April 29, 2018, the first commercial tweet from space was sent by a private company Solstar utilizing solely commercial infrastructure during the New Shepard flight.