iOS 13 finally lets you use game controllers you likely already have in your home.

It only took a few years, but this fall the iPhone, iPad, and Apple TV will finally support PlayStation 4 DualShock 4 controllers and some models of Xbox One controllers. It’s super easy to set up these controllers, too, as you’ll see below.

For this story, we’ll focus on pairing the Sony DualShock 4 with an iPhone or iPad. All you need is an iPhone or iPad running iOS 13 or iPadOS 13 (which at this point means you’ll need the still-buggy beta) and any model of wireless DualShock 4 controller for the PlayStation 4.
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https://www.macworld.com/article/3410287/how-to-pair-a-ps4-dualshock-4-controller-with-iphone-or-ipad.html