To turn on automatic app updates on an iPhone, follow these steps:
Open the “Settings” app on your iPhone.
Scroll down and tap on “App Store”.
Toggle on the “App Updates” option.
Optionally, you can also enable the “Use Mobile Data” option if you want to allow automatic app updates when you are not connected to Wi-Fi.
Once you’ve turned on automatic app updates, your iPhone will automatically download and install app updates in the background without any additional input from you. This can save you time and ensure that you always have the latest versions of your apps installed.