Was Anime tv Pirated?

Ive been using Anime tv for a while. It was pretty good but was kinda buggy. I had considered the possibility that it wasn't legit, but my research said otherwise.

Just today it stopped working on both devices i had it installed on, and is no longer available on the play store. I can still open the app, but it is all blank. Is it pirated and shut down now, or is this just temporary? (im extremely new to the possibily illegitimate anime app business, and dont want to do go about this incorrectly)

The icon is a peachy pink color with a white tv icon that says anime.