OZLAN Technical Services

Should you quit your iPhone apps after using them?

You may have been told to force quit the apps you're not using on your iPhone to save the battery, but it turns out that,  force-quitting your iPhone apps is actually draining the battery instead. To be clear, force-quitting your apps is when you double tap the home button to make all of your open apps show up — you then swipe them to force-quit. Even Apple employees have recommended against force-quitting iPhone apps — Apple's software SVP has even said it's not necessary.
The single biggest misconception about iOS is that its good digital hygiene to force quit apps that you aren’t using,. The idea is that apps in the background are locking up unnecessary RAM and consuming unnecessary CPU cycles, thus hurting performance and wasting battery life. That’s not how iOS works.
I'm not sure where this force-quit rumor started, but pretty much every iPhone user I know thinks this is the way to save battery life, and we're all wondering why our batteries are draining faster instead. In fact, Steve Jobs said in 2010: "Just use [iOS multitasking] as designed, and you’ll be happy, No need to ever quit apps".
The force-quit myth is so pervasive that I have even heard Apple store employees have recommended it to customers.
The iOS system is designed so that none of the above justifications for force quitting are true. Apps in the background are effectively 'frozen,' severely limiting what they can do in the background and freeing up the RAM they were using, iOS is really, really good at this. It is so good at this that unfreezing a frozen app takes up way less CPU (and energy) than relaunching an app that had been force quit. Not only does force quitting your apps not help, it actually hurts. Your battery life will be worse and it will take much longer to switch apps if you force quit apps in the background.
A lot of work went into creating an iOS that keeps your apps open but doesn't run them while you're not using them. And every iPhone user in the world who habitually force quits background apps manually is wasting all of the effort that went into this while simultaneously wasting their own device’s battery life and making everything slower for themselves.

Speed up and improve iOS on iPhone, iPad, iPad mini, iPad Pro and iPod touch

Almost all of these changes are done in the Settings app, and are located under the Accessibility option in General settings.
Enable Larger Type: This is particularly useful on non-retina devices, as it makes the thin font of iOS infinitely more readable.
Enable Bold Text: Again, this makes the text far easier to read in all conditions.
Enable Increased Contrast: This option helps with the readability of text and other UI elements throughout the OS. It also removes the blurred glass effect, increasing performance of Notification and Control Center.
Enable Reduced Motion: This removes the animations found throughout iOS, and replaces them with simple crossfades. The result is something that doesn’t look particularly interesting, but results in what appears to be faster performance on older devices. It also removes the parallax effect, meaning that the GPU and CPU are under less load.
The nuclear option to achieve better performance is to restore the device, and set it up as a brand new product. This removes any old or discarded code left on your device from past updates and apps. This can be done either directly on the device, through Settings>General>Reset>Erase All Content and Settings and then not restoring from an iCloud backup, or through iTunes, but to set the device up as new.