Now available in New Zealand
"When you buy an eligible app, game, movie, TV show, or book in the Play Store, you can now share it with your family—across devices—with no additional sign-up fee.
Starting today, Family Library will be rolling out over the next few days and will be available in Australia, Brazil, Canada, France, Germany, Ireland, Italy, Japan, Mexico, New Zealand, the United Kingdom and the United States. To get started, sign up in Google Play, invite your family members, and start sharing what you love!"
Sign up for Family Library
Open the Play Store app.
In the top left, tap Menu Menu and then Account and then Family and then Sign up for Family Library.
Follow the instructions on screen to set up your Family Library.
Note: The family members you invite will see your name, photo, and email address.
Only apps purchased after July 2 2016 are eligible to be shared.