The email was originally sent to Apple CEO Tim Cook but Federighi intervened.
Here's the exchange...
Do you quit your iOS multitasking apps frequently and is this necessary for battery life? Just wanting you to put this controversy to rest!
P.S. I'm rooting for Apple in the FBI case.
I know you asked Tim, but I'll at least offer my input:
| Do you quit your iOS multitasking apps frequently and is this necessary for battery life?
No and No.
Thanks for being an Apple customer!
It's become common practice for many iOS users to manually clear out their multitasking switcher in hopes of improving device performance. As Federighi's email reveals, this should not be necessary. However, apps can perform background tasks and may have bugs or other issues that prevent them from operating as Apple intended. For example, Facebook 'unintentionally' playing silent audio in the background and keeping its app alive until users took notice.
Do you notice improved performance or battery life when you clear out the multitasking switcher? Let us know in the comments!