Which app is guilty of draining your phone battery?

The answer depends on a variety of factors and uses cases.
“To find out, go to your iPhone’s Settings, and scroll down to Battery. Tap that and you’ll see your battery usage, broken up by app, for the last 24 hours or the past 7 days. You’ll also see which apps are using up your battery life with background activity, meaning that even though you aren’t in the app, you didn’t swipe up to close it and it’s still draining your power.”

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