Google is launching a new beta that allows app developers to turn off ads from specific segments of users, while displaying ads to other users.

This would allow app developers to turn off ads to premium users or users that are very active and engaged, while displaying ads to more casual or first time users.

It works with the Audience Builder tool, which is powered by Google Analytics.  The Audience Builder enables app developers to track segments of users individually, rather than tracking all users together.

Now we’re announcing a new smart feature in beta, that enables you to define a list of users and show ads to them, while hiding ads from the rest of your users. For example, you might show ads to casual users, but hide ads from highly-engaged users who love sharing your app with their friends on social networks.

To sign up for the beta, you can submit your information here.