I had the same issue. You don’t double click the screen but you double click the button on the right side of the phone. If that doesn’t work then sign out and back in to the iTunes Store in your settings and try again.
I’m having trouble with the “Double Click to install” feature on the iPhonex. It doesn’t work when I try to install an app or pay for in app purchases
2 replies
Hi
Go to i books download iPhone X guide it.s Free
Cheers
Brian 🇬-1F1E7;
iphonex double click to install doesn’t work