In March of 2015, Periscope was acquired by Twitter. Periscope is an application dedicated to live feeds. Users can watch live feeds and also host them. Viewers can comment during the live stream and like the broadcast with a simple tap of the screen. Tapping the screen gives the broadcaster more hearts which pushes them up in popularity. In the few months since Periscope has been relaunched for iOS, people have live streamed all kinds of things from concerts to weather reports and even training exercises.