Forever Upgrade is a T-Mobile exclusive program that gives customers value now and forever. Customers on premium cell phone plans like Sprint MAX can lock in up to $800 off in trade-in value forever. Every two or more years, trade in your eligible iPhone and upgrade to the latest iPhone and get up to $800 off via monthly bill credits. And, as long as you’re a T-Mobile customer on a qualifying plan, you can repeat that forever. You can also take advantage of any offer available on iPhone 13 now, like iPhone 13 on us with trade on Magenta MAX or Sprint MAX.