I heard about this, and it seems too good to be true. Does anybody else use this service? Am I missing something? I believe it uses T-mobile's network but not 100% sure

The "Zero" plan cots nothing. No monthly cost, no fees. It includes 3GB of data ($7.50 per GB after that), and 100 mins of calling, 300 texts.

The "Air" plan is $15 per month. Unlimited texts/calls, and 10GB of data included.

The "infinity" plan is $30 per month. Unlimited text/calls, unlimited data.

For my work phone, I very rarely make calls, almost never text, and it's always on wifi if I use it.

Does anybody use this?

https://heliummobile.com/#plans