Helium Mobile's Zero plan runs on T-Mobile and Helium for coverage.
It costs $0 per month for 2 lines.
It comes with 100 minutes, 300 texts, and 1GB + 2GB of high-speed data per month. There is no hotspot data. Video streams at 480p quality.
Data is deprioritized, so speeds may slow during network congestion.
Taxes and fees are extra. Expect roughly $4.40 more per month, bringing your total to about $4.40.
Overall, I recommend the Helium Mobile Zero plan because it is a good value.
You can also check out these plans with the same coverage and data amount (scroll left and right to browse plans):