How to navigate back in IOS?

If I click on contact Us in my application , mail client will open.I don’t have back button to come back to my app.
I can navigate back in android using ((AndroidDriver) driver).pressKeyCode(AndroidKeyCode.BACK);
Is there any similar way in IOS to navigate back?

If you are using iOS10 you have on top left a back arrow with the name if your app, you can click in there to go back to your app.

If not, you can use driver.launchApp() to open your app again

@Telmo_Cardoso If I use driver.launchApp() ,I am getting error A session is either terminated or not started (WARNING: The server did not provide any stacktrace information) .

I also tried to restart session by creating new session with capabilities.setCapability(“noReset”, “True”);
capabilities.setCapability(“fullReset”, false);
But home page of my app is launching .Actually I wanted to go to the contact page from where I clicked the external link.

Hi Telmo, Can you please tell me how to click on the top left a back arrow with the name if your app.

Thank You!!!