The prepaid carrier gives customers unlimited access to high-speed data, but with a few caveats.
Both carriers have similar programs that allow customers to carry unused data from one month to the next, but it's not as simple as it sounds. This is how these rollover data plans really work.
CNET's Dan Graziano explains the difference between T-Mobile and AT&T's rollover data programs.
The Simply Prepaid plan puts T-Mobile in direct competition with its own prepaid arm, MetroPCS, which may actually still provide a better value for some.
A new salvo in the wireless price war cuts the price of shared data on two lines by 29 percent.
Can't afford the steep off-contract prices for Apple's new smartphones? T-Mobile joins other wireless carriers in aiming to make it easier for users to pay them off.
The wireless war between Sprint and T-Mobile heats up as T-Mobile fires yet another salvo for a second consecutive day.
Sprint is on the offensive this week with new pricing plans that put it in a better position to compete against the other three major US carriers.
Arriving later this month, the 'Uncarrier's' uncluttered refills are much easier for consumers to understand.
The wireless carrier adds to its many promotions with a $5-a-month program called "Score," designed to unlock lower smartphone prices.