Recently, according to foreign media reports, Apple said that swiping to close iPhone apps could shorten battery life and slow down the Device.
Some users believe that apps in the background are also CPU-intensive and power-hungry, and using fewer apps means longer standby and battery life. So users will often swipe to close applications that they are not using to “save power”, but in fact this idea is wrong.
Apple says that when an app you’re using appears, previously open apps are frozen and put in standby mode to help you navigate and multitask without taking up additional device resources.
On the Apple technical support site, it is recommended not to swipe to force quit unless the app is unresponsive. Craig Federighi, Apple’s senior vice president of software engineering, had earlier replied to users that quitting an app would not save battery power.
Technical analysts say that thawing a frozen app uses less CPU and power than restarting a forced-quit app. Not only is there no benefit to force-quitting an app, but it can also hurt battery life, and switching apps will take longer.