If you have AssistiveTouch enabled, it can sometimes override the physical button requirement. Go to > Accessibility > Touch > AssistiveTouch .
Troubleshooting the "Double Click to Pay/Install" Not Working on iPhone double click to download app not working
Press and hold the until the Apple logo appears. Why does Apple make us do this? If you have AssistiveTouch enabled, it can sometimes
Change the "Click Speed" from to Slow or Slower . This gives you a wider window of time to complete the two clicks. 5. Sign Out and Back Into Media & Purchases Why does Apple make us do this
Apple requires the physical double-click to prevent "ghost" purchases. Because Face ID is so fast, you might accidentally buy an app just by looking at your phone. The physical click acts as your final "Yes, I'm sure" confirmation.
You need to click twice in rapid succession. If you are too slow, the phone will simply lock or go to the home screen.
Ensure you are clicking the Side Button (the sleep/wake button), not the volume buttons or on the screen itself. 2. Confirm Face ID is Enabled for the App Store