Closing all open windows

iPhones don’t multitask and therefore you can’t have 25 open windows. The apps in the background are essentially in hibernation and use minimal memory resources and consume minimal battery capacity.

However, if an app is not functioning properly, a good troubleshooting step can be terminating the app or better, deleting the app entirely.

There is no value in closing an app on an iPhone unless the app is malfunctioning.

"Closing all open windows: Is it necessary to have phone keep up with 25 open windows?"

-------

Closing All Opened Windows:

If you have no need to use those apps, then closing them would be just fine.

You welcome!