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T-Mobile today launched its eSIM app for the iPhone XS, iPhone XS Max, and iPhone XR. With this app, owners of Apple’s new iPhones can add a secondary prepaid line to their device. Just enter your email address into the app, select a prepaid plan, and you’ll be good to go.

Currently, T-Mobile only offers prepaid plans for eSIM on the iPhone XS, XS Max, or XR, but the carrier says that it plans to support postpaid plans on eSIM "in the future". The T-Mobile eSIM app is supported on any T-Mobile or unlocked iPhone XS, XS Max, or XR running iOS 12.1.1 or later.