Spot Mobile uses the T-Mobile network, and provides an unlimited plan option that throttles according to users (check the community feedback links below).
Smartphone plan overview
Spot Mobile operates on the GSM 1900 and UMTS 1700/2100 bands and is compatible with AT&T and T-Mobile.
The best smartphone plan that we've located is the $49.99 unlimited plan:
- 1 GB data cap
- Unlimited minutes
- Unlimited text messages