You’ve seen the Provisioning profile page, but what is iTunes Connect? It’s a dashboard that allows you to manage your apps, view reports of your performance in the App Store, manage your contracts and more. When you enroll in the iOS Developer Program, you’ll have access to iTunes Connect as well.
Note that this is not the Connect from within iTunes the app but rather the developer version available from when you log into your developer account!
First, click on "My Apps" in the upper left.
On the next screen, click the [+] button.
From the drop down menu choose "New App".
Now you just need to enter your app information...
Once your App information is entered, you'll be able to continue by clicking the "Create" button. Now the app detail screen will appear, here you'll need to add some more information.
Now that you've created your app listing, you'll be able to submit your app to the App Store via Xcode.