iPhone users, listen up: you can stop shutting down all those apps in order to save your battery life. It doesn’t work.

An Apple customer known as ‘Caleb’ emailed Apple boss Tim Cook with the question ‘Do you quit your iOS multitasking apps frequently and is this necessary for battery life?’

Though he didn’t receive a reply from Cook, he did get a response from Senior Vice President Craig Federighi, who answered: ‘No and No’.

In fact, closing down your apps completely after each usage can worsen your battery life in the long run.

As one Apple expert explained back in 2014: ‘By closing the app, you take the app out of the phone's RAM . While you think this may be what you want to do, it's not. When you open that same app again the next time you need it, your device has to load it back into memory all over again. All of that loading and unloading puts more stress on your device than just leaving it alone.’

So, you’ve been living a lie. You can stop swiping up now.

Headshot of Bibby Sowray
Bibby Sowray
Former Digital News & Features Editor

Bibby was ELLE's former Digital News & Features Editor.