Last week was awesome for Fortnite with the mobile release. But, PUBG catched up. Tecent and Bluehole worked together to get PUBG on mobile.
Fortnite Mobile version is invite only. And supports ios 11 and iphone 6s or better. However, PUBG supports ios 9 and iphone 5s or better.
We have tried both games and decided PUBG is better optimized. It feels smoother and doesn't lag as much as Fortnite. Also, PUBG is much more customizable in every aspect. PUBG is free on mobile but doesn't carry over skins you already own on PC.
Lets compare pros and cons of both apps.
Fortnite
Pros:
-Can use skins on both platforms.
-2GB
-IOS 11
-Iphone 6s
-Full Battle Royale
-Cross platform play
Cons:
-Laggy servers
-Hard controls
PUBG mobile
Pros:
-Full game
-Costumizable settings
-827 MB
-IOS 9 and Android
- Iphone 5s
-Optimized
Cons:
-No skins ported.
-No cross platform play.
Overall, even though PUBG is better optimized, Fortnite has cross platform and stats/skins carried over to mobile. So, I think Fortnite is better overall.