Anyone can sign up to Project Fi to lead a group account. Every account has room for the holder and five additional lines. Those already on Project Fi can be invited to join and merge their line into a Group Plan. Of course, you’ll need to get a Nexus 5X, 6P or a Pixel to sign-up in the first place.
Data is still just $10 per gigabyte on all devices. However, costs for the Fi Basics of talk and text increase by $15 per line from the base $20 per month — meaning that a group of six will pay $95 for starters.
The account holder can track each user’s bill on the Project Fi app and set limits and alerts for data usage. Service can be selectively stopped to certain lines, if necessarily.