If an app is acting up, here's how to force-quit it iPhone X and newer: Swipe up halfway and pause to reveal the App Switcher view. Then, swipe up on the app to close. iPhone SE, 8, and earlier: ...

You wouldn’t want to trigger a battery app-ocalypse. Closing open iPhone apps might seem like a surefire way to save juice, but this measure can actually have the opposite effect, according to Apple ...