Along with a complete restructuring to remove contracts with its 'Simple Choice' plans, T-Mobile is also consolidating its prepaid plans to fall into line. Previously a distinctly separate business for T-Mobile under the "Monthly 4G" branding, the magenta carrier's prepaid plans are now available at each of the same tiers as the Simple Choice plans. $50, $60 or $70 monthly will get you unlimited talk and text along with 500MB, 2.5GB or unlimited unthrottled data, respectively. Previously, the $60 plan offered 2GB of data and the $50 plan an awkwardly low 100MB of data.
One thing that hasn't changed in its prepaid offerings are the lower level of plans, of which there are still several options. T-Mobile still offers the somewhat-famous $30 prepaid plan with 100 minutes and 5GB of full-speed data, as well as the other $30 plan at 1500 minutes and 30MB of data. There are still "pay as you go" plans with rates between $10 and $100 for minute-only plans, as well as "pay by the day" plans at $3/day for unlimited talk, text and web or $2/day for the same restricted to 2G speeds.
It's actually unclear at this point what distinction -- if any -- will be made between its primary and prepaid plans going forward, and we wouldn't at all be surprised to see stand-alone prepaid plans go away for all but the lowest tiers. There's little to no reason for the current duplication of $50, $60 and $70 plans, and they're likely to slowly fade away as the two sets of plans integrate.