This includes both Mint Mobile and Ultra Mobile. Both these carriers were acquired by T-Mobile earlier this year. This means that if T-Mobile supports RCS on iPhone, these carriers should too.

It’s great that we have RCS finally on the iPhone, but there’s still room for improvement. Currently, RCS between Android and iPhone does not have end-to-end encryption (E2EE), which is a bummer.

Many iPhone users feel RCS and the advantages it offers only affect people living in North America, where iMessage is still a big thing, and the green-blue bubble battle rages on.

I’m pretty ticked it isn’t on Mint mobile yet. So much so that I plan on switching if they don’t have it when my year is up in a couple of months (after being a customer for 6+ years).

Xfinity Mobile The list is rounded out by Boost Mobile, which isn't listed for RCS support but it does support the standard, as long as you have an iPhone XS/XR or later with iOS 18.2 installed.

In fact, Mint Mobile revealed months ago on Reddit that it should have support for RCS sometime between December and Q2 of 2025. Ultra Mobile is also expected to see support around the same time.

That’s right, your mobile operator has to make RCS available for iPhones working on its network. You can’t have RCS texting on your iPhone running iOS 18 beta 2 until your carrier does that.