This is because Sony has an app called the Remote Play app that they launched back in March. For those who are unfamiliar with the app, basically what it does is that it lets you stream games from your PS4 to your iPhone over WiFi. This essentially turns your iPhone into a mobile gaming console, but unfortunately, the on-screen controls and also third-party controllers were a less than stellar experience.
Enter iOS 13, where Apple will now allow the use of Sony’s PS4 controller, meaning that Remote Play just got a whole lot more useful as gamers will be able to truly play their PS4 games on their iPhones the same way as they would on their consoles without compromised controls.
However, before you get too excited, note that not all PS4 games are compatible with Remote Play, and the fact that it is only streamable over the same WiFi network means that you can’t quite take your iPhone with you and play your PS4 games while on the go, but it’s still a pretty nifty feature all the same.