Available for PC, Xbox One and PlayStation 4 for a few months already, Fortnite has recently reached iOS devices, after a short invite-only beta period. Now, it looks like the invites for the Android beta are going out already, so mobile gamers that use Google's platform should get Fortnite pretty soon as well.
https://www.notebookcheck.net/Fortnite-for-Android-to-arrive-in-a-few-months.302270.0.html
How can you play shooters on phones? The steering is unwieldy at best, not to mention the small screen..
Use something like this - https://www.amazon.com/BEBONCOOL-Wireless-Bluetooth-Controller-Emulator/dp/B0171JGYF2
Speaking for myself, I only played some Hitman: Sniper on my phone because I got it as a freebie. The experience was bearable, but I can't imagine playing PUBG or Fortnite without a controller.