After signing into your Gmail account, you can access your Gmail account though the iPhone mail app - https://emailspedia.com/how-to-setup-and-access-gmail-on-iphone/ . Click the Gmail icon, and then tap the setup tab. Once you have added your Gmail account, you can configure your settings. Now you can access your emails in the iPhone, snyc with your calender, and delete your emails from Google account. Your emails will then be addes from your iPhone.