Federighi also notes that closing background apps does nothing to improve your phone’s performance, for many of the same reasons it doesn’t affect your battery. iOS manages your iPhone’s RAM ...

Boost your iPhone battery life by knowing how to turn off Background App Refresh on an iPhone When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

If you wish to remove the background from an image on any other app, like Messages, Notes, or some third-party iPhone app, you can do so using steps 3 and 4 listed above.