T-Mobile Looks to Grow Subscriber Base With Limited-Time Free iPhone 11 Offers

T-Mobile is offering service switchers a free iPhone 11 or 11 Pro, or up to $1,000 off an iPhone Pro Max -- via bill credits -- with an eligible in-store trade-in and qualifying plan. It’s offering existing customers a buy-one-get-one offer on the 11 or 11 Pro, or up to $1,000 of an iPhone Pro Max, via bill credit, when they add a voice line to a qualifying line, said the carrier Friday. It didn't give an end date for the limited-time offer. The company didn't respond to questions.