While some people believe that quitting apps they’re not using on the iPhone helps save battery power and memory, that’s really not the case. It actually uses more energy and data than if you simply left the apps running in the background.
Pushing the “Home,” button sends an app into the background. One minute later, iOS freezes the app so that it’s not using either battery or memory. By force quitting, the app fully refreshes itself instead of coming back from its suspended state. This actually takes a lot more data and battery than simply letting it resume where it was.
Some apps have permission to run in the background, such as Pandora, Google Maps, Spotify, Waze, etc… Those should be, “swiped up,” or they will continue to use battery power.
You can choose what you want to run in the background by going to:
Settings – General – Background App Refresh, then turning off anything you don’t want to run.
In general, leave on apps such as Maps, Google Maps, and Waze. If you take a phone call while those apps run and, “Background App Refresh,” is off, the app stops refreshing itself, which isn’t good if you’re using map apps to go from Point A to Point B.
The same thing is true for apps such as Pandora, Spotify, iHeartRadio, Nike+ and Podcasts. All stop playing if you switch to another app. For example, when you go to the gym you may have both your exercise app and a music app on at the same time.
If “Background App refresh,” is off, they will stop updating or playing 1 minute after the home button is pressed.
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