Aniwatch and Zoro are same. Zoro.to was suddenly shut down and whenever people used to visit the website, they were redirected to Aniwatch.to. It is concluded that Zoro.to is officially acquired by a new dev team and is rebranded as Aniwatch.to. So, all old Zoro.to users can download and watch subbed or dubbed anime series in high quality on Aniwatch.to.