Meet the new inbox: If you’ve enabled the new inbox, your mail is now grouped into categories so that you can see what’s new at a glance and decide which emails you want to read when. Primary mail is shown first and it’s easy to access and keep track of email in other categories by opening the menu. Configure this feature by going to Gmail.com on your computer.
Today’s Gmail update also brings improved notifications allowing you to customize what emails you receive notifications for:
New notifications options: Get notified for all messages, only important messages, or none at all, on a per account basis. Customize these settings from the in-app settings page.
The updated Gmail for iOS app is available now on the App Store.