Earlier quoted context omitted.
There is no difference in closing vs hiding apps in iOS. When the app is hidden, the process is stopped. Yes, you can force kill the process by swiping up on the dock and then swiping away the frozen apps , but you should never do this unless the app is unresponsive. It gets you zero benefit, other than using extra battery next time you launch the app to run its initial setup again. In fact Apple originally got rid o…
> you should never do this unless the app is unresponsive In theory, yes, but not in practice. For example, the chromecast icon sometimes disappears in Hulu, which requires killing the app and reopening to get it back. The stock Mail app used to get stuck in fetching mail and refused to refresh, again requiring you to kill the app. Facebook Messenger's text input sometimes disappears entirely, requiring you to kill t…
All of those are examples of unresponsiveness..