Is there a limit to how much extra data I can add to my $28 /mo Base Plan? Happy from Happiness at Circles.Life Updated February 14, 2019 05:33 Follow You can add the UNLIMITED Data Add-on to your Base Plan. You can also customize your Base Plan for $6 /GB. Check out our data prices here. Related articles Can I choose a specific number when I am getting a new number on the $28 /mo Base Plan? What is a Silver / Golden Number? How do I sign up for the $28 /mo Base Plan? Does Circles.Life offer corporate plans? I didn't get any confirmation on check-out. What should I do?