Fortnite was banned on the Google Play Store and the Apple Store! Yes! Epic actually did that. Why did Apple and Google ban Fortnite? Because Epic got tired of paying the 30%, so in response Apple & Google banned the game. Now on iOS, there is no way around this, but since Android has an open ecosystem, you can still play Fortnite on Android via the APK version. You can get the Fortnite APK from third-party websites but it’s better to take the official route via the Fortnite website.
This is perfectly legal and sanctioned by Google and the only alternative while things are being worked out. Epic sued Google and Apple, so we will see what happens. Also, whatever happens, could have huge implications on the mobile gaming scene as a whole.