How to use split screen on iphone 13 pro July 8, 2019 16 32 64 128 How to split screen on iphone 13 pro max How to split screen on iphone 13 pro How to use split screen in iphone 13 pro max How to do split screen on iphone 13 pro max How to do split screen on iphone 13 pro How to turn off split screen on iphone 13 pro max How to split screen on iphone