You're advised to keep the Fortnite Installer even after you've started playing, as the installer is what keeps the game updated with new patches, not the actual game app.
"There is some concern that by circumventing Google Play, Epic may potentially make it more challenging for users to install "Fortnite" on devices running older Android versions, where side loading of apps isn't as straightforward as in more recent releases", he said.
Last week, Epic Games announced it was bringing Fortnite to Android, making it first available exclusively for Samsung users. Once they're finished sideloading the launcher app, they should now be able to download the 1.88GB game without a problem. The registration requires you to create an Epic Games account or sign in with your existing account if you have played the game previously on a console or iOS device. Google Play Store does not offer the game at this time.
While iPhone users have enjoyed access to PUBG-rival Fortnite, Android smartphone owners have been in isolation.
In a move I've never seen before, and can't find any example of happening in the past, the Google Play Store now directly addresses the lack of Fortnite on the service. However, underneath this message is a link to the Android version of PlayerUnknown's Battlegrounds, which is available via Google Play. Sure, it's easy to compare checksums to confirm that an.APK file is Epic's official file for Fortnite, but you have no idea what someone has included when tweaking an.APK to bypass Epic's security measures: Some piece of code that, oh, logs your login credentials on a server somewhere, or a spammy request for you to fill out some bogus survey. You'll either have to download the game through Samsung's Game Launcher or from Epic's website. However, most app developers choose to pay Google's platform fees because they feel that their app will not be found by enough users without a presence on Google Play.