US Mobile added a second budget offer on Oct. 15: Unlimited Starter at $10 a month for six months, open only to customers who port in an existing phone number. It sits alongside the carrier's $199 first-year annual offer on the same plan. Both end Oct. 20, according to US Mobile's promotion archive. The monthly offer runs Oct. 15–20, and the annual offer Sept. 30–Oct. 20.
The short answer: over a full year, the two cost almost the same. Six months at $10 followed by six months at the $25 renewal rate comes to $210 in advertised service charges, $11 more than the $199 annual price. What really separates them is who qualifies, how much cash is due at signup, how much you've already spent if the plan doesn't work out, and which features come with each billing option.
Cash at signup, and what's exposed
Taking the annual deal means paying for all 12 months at once, which is $189 more at signup than the first month of the $10 promotion. Talk Android, which lists the annual deal in its budget-plan roundup and says it checked plan prices against carrier pages, puts the effective rate at $16.58 a month and calls the upfront payment the plan's main affordability catch.
That gap matters most if the plan doesn't work out. Leave after six months on the monthly route and you're out $60. On the annual route, the full $199 is already spent, and whether any of it comes back is unclear. US Mobile describes itself as a prepaid, no-contract carrier, and WhistleOut lists no contract and no overage fees among the plan's features. But none of the pages reviewed for this report spell out refund or proration rights for an annual prepayment canceled early.
Eligibility differs, and the sources disagree
US Mobile's plans page is clear about the monthly offer: $10 a month with code FBF10, port-ins only, renewing at $25 a month after six months. The annual offer is murkier. Talk Android reports it as limited to new lines. WhistleOut lists the promo code as ONLY199 and says either a new-line activation or a number port qualifies, with up to five promotional lines per account. US Mobile's archive shows no code for the annual deal at all. If you're counting on porting a number in at the annual price, confirm with US Mobile that ports qualify before you cancel your current service.
The annual plan includes international features monthly billing doesn't
According to the plans page, calling to more than 180 international destinations is included on annual plans but costs extra as an add-on for monthly Starter. Annual Unlimited Starter also comes with 1GB of international roaming data, 200 minutes and 250 texts. For someone who calls or travels abroad regularly, those extras may outweigh the $11 gap, though the reviewed pages don't give the price of the monthly international add-on. US Mobile says taxes and fees are included in its advertised prices.
Network choice changes the data you get
US Mobile sells service on three networks it calls Warp, Dark Star and Light Speed, and the plan isn't the same on each. On Dark Star, the plans page says, Starter keeps unlimited high-speed data with 20GB of hotspot; Warp and Light Speed Starter customers may see slower speeds after 70GB in a month. WhistleOut's listing for the annual Dark Star version puts its baseline priority at QCI9 and lists an optional QCI8 upgrade for Unlimited plans at $12 a month or $120 a year.
What isn't established
Talk Android's roundup ran Oct. 14, a day before the monthly offer launched, so the $10 price rests on US Mobile's own pages. Several terms stay open in the pages reviewed: whether AutoPay is required for FBF10; activation, physical-SIM or eSIM charges; refund or proration on an early annual cancellation; hotspot speeds once the 20GB allowance runs out; video-streaming resolution limits; congestion handling on Warp and Light Speed; and full Canada and Mexico calling and roaming terms. WhistleOut does say calls to Canada are included on Warp. The $210-versus-$199 comparison covers advertised service prices only.
The promo archive also lists earlier annual promotions with their own end dates, so $199 is the current version of the deal rather than a standing price. If neither offer fits before Oct. 20, the plan's regular rates are $25 a month or $270 a year, which works out to $22.50 a month.