Turn Off Automatic Downloads
By default, your iPhone regularly search out updates for the apps you have installed. Not only that but if you installed an app on your iPad, your iPhone also has the ability to install it on your iPhone. That way, you can get the latest features without even knowing the app has been installed.
If your iPhone starts to download an update in the background, it might also start to run slowly, as it can’t handle multiple tasks anymore.
If that’s the case, you can turn off automatic downloads by doing the following:
- Open the Settings app.
- Scroll down and go to App Store.
- Scroll down and under Automatic Downloads, disable App Downloads and App Updates.