The AniLab website is simply a door. The app is the destination. If you are on Android and want a tracker + player hybrid, it is one of the best tools available. Just remember to use a good ad-blocker and an antivirus when downloading the APK.
Because AniLab aggregates links from unofficial sources (similar to KissAnime or 9anime in its prime), However, the website and app operate in a legal grey zone. anilab website
Since the website is just a gateway, the real magic happens once you install the app. Here is why the anime community loves it: The AniLab website is simply a door