Is there any good animation watching app in Japan?

It is an online video sharing website provided by NIWANGO Company in 2006, usually referred to as niconico, N Station or Nico for short. Similar to YouTube and other video sharing sites, but Niconico animation provides viewers with the function of leaving messages on the film, and the messages will appear on the film in the form of barrage.

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Like YouTube, NICONICO animation is often uploaded to some movies that are considered infringing. At the request of the copyright owner, Niconico will also delete the short film accused of infringement after review.

On July 2, 2008, three groups, Japan Film Producers Union, Japan Animation Association and Japan Video Software Association, wrote to niwango, the animation manager of Niconico, asking them to delete infringing animations including MAD as soon as possible.