Difference between terminateApp and closeApp

Can someone explain me the difference between terminateApp and closeApp.
When I use terminateApp or closeApp I can relaunch the app using launchApp.

terminateApp takes a JSON parameter that allows you to specify the app you’d like to close, for instance if you wanted to terminate settings or some other app.

closeApp takes no JSON parameters and can only close the app under test.

Please see:

closeApp is a legacy method and internally does almost the same as driver.quit, just without deleting the session itself. It is a direct counterpart of launchApp, which is roughly equal to new driver instance init

terminateApp works as any other normal command and does not do anything else except of app termination itself. Its counterpart is activateApp. These two methods are more flexible and can terminate/start any apps, not only the one, which is currently under test. Unfortunately, due to general limitations of different automation frameworks (e .g. app under test must be in running state in order for the framework itself to be running), these endpoints are not universal and only work for some automation backends (currently XCUITest and UIA2). Also, they are more preferable for usage except for the situations where only the legacy (and slow) endpoints above are able solve your task.



What should I do to kill the app and reopen it before the simulator closes? Help me Please

How can I kill the working application without closing the simulator and then reopen this application.

you can use terminateApp for closing and activateApp for launching