Google's Project Fi helps you pay your share of the phone bill
 

It's not much fun to split up a wireless family plan, especially if you're not splitting it evenly. How much do your kids owe if they're only paying some of their bill? What about that roommate who always uses too much data and drives the bill higher...

https://www.engadget.com/2017/06/20/...i-group-repay/