Google announced their new wireless service, which is called Project Fi and now the company has launched a Google Project Fi app on the Google Play Store.
You will only be able to use the Google Project Fi app if you own a Google Nexus 6 smartphone, as the new wireless service will only work on this handset at the moment.
Project Fi is a new wireless experience from Google designed to help you get the highest-quality connection, enable easy communication across networks and devices, and make the service experience as simple as possible. For more information about Project Fi and how to sign up, visit google.com/fi and request an invite.
You can find out more details about the new Google Project Fi app over at the Google Play Store, the app will only work on the Nexus 6.
Source Android Police