iOS 18.4 Brings RCS Support to Google Fi, Mint Mobile and Other T-Mobile MVNOs

The second beta of iOS 18.4 expands RCS messaging support to more carriers in the United States and other countries, according to multiple reports on Reddit, the MacRumors forums, and other social media sites.

apple rcs thumb
After installing iOS 18.4, iPhone users with Mint Mobile, Google Fi, Ultra Mobile, Tello, and US Mobile are able to toggle on RCS messaging, and the functionality appears to be rolling out for all T-Mobile Mobile Virtual Network Operators (MVNOs).

‌iPhone‌ users with a T-Mobile MVNO can be enabled through the Messages section of the Settings app. It appears that ‌RCS‌ access is only available for those running the second iOS 18.4 developer beta, not the public beta.

In France, Orange and Sosh also have ‌RCS‌ available with iOS 18.4 beta 2, according to iPhoneSoft, so ‌RCS‌ may also be rolling out worldwide for other carriers.

‌RCS‌ was enabled for major carriers with the launch of iOS 18, and it stands for Rich Communication Services. ‌RCS‌ is a communication protocol that improves messaging between ‌iPhone‌ and Android users, offering support for higher resolution photos and videos, larger file sizes, audio messages, Wi-Fi messaging, real-time typing indicators, read receipts, and more.

Related Forums: iOS 18, iPadOS 18

Popular Stories

Foldable iPhone 2023 Feature 1

Apple to Make More Foldable iPhones Than Expected [Updated]

Tuesday December 9, 2025 9:59 am PST by
Apple has ordered 22 million OLED panels from Samsung Display for the first foldable iPhone, signaling a significantly larger production target than the display industry had previously anticipated, ET News reports. In the now-seemingly deleted report, ET News claimed that Samsung plans to mass-produce 11 million inward-folding OLED displays for Apple next year, as well as 11 million...
Google maps feaure

Google Maps Quietly Added This Long-Overdue Feature for Drivers

Wednesday December 10, 2025 2:52 am PST by
Google Maps on iOS quietly gained a new feature recently that automatically recognizes where you've parked your vehicle and saves the location for you. Announced on LinkedIn by Rio Akasaka, Google Maps' senior product manager, the new feature auto-detects your parked location even if you don't use the parking pin function, saves it for up to 48 hours, and then automatically removes it once...
iOS 26

15 New Things Your iPhone Can Do in iOS 26.2

Friday December 5, 2025 9:40 am PST by
Apple is about to release iOS 26.2, the second major point update for iPhones since iOS 26 was rolled out in September, and there are at least 15 notable changes and improvements worth checking out. We've rounded them up below. Apple is expected to roll out iOS 26.2 to compatible devices sometime between December 8 and December 16. When the update drops, you can check Apple's servers for the ...
iPhone 14 Pro Dynamic Island

iPhone 18 Pro Leak Adds New Evidence for Under-Display Face ID

Monday December 8, 2025 4:54 am PST by
Apple is actively testing under-screen Face ID for next year's iPhone 18 Pro models using a special "spliced micro-transparent glass" window built into the display, claims a Chinese leaker. According to "Smart Pikachu," a Weibo account that has previously shared accurate supply-chain details on Chinese Android hardware, Apple is testing the special glass as a way to let the TrueDepth...
iOS 26

Apple Seeds Second iOS 26.2 Release Candidate to Developers and Public Beta Testers

Monday December 8, 2025 10:18 am PST by
Apple today seeded the second release candidate version of iOS 26.2 to developers and public beta testers, with the software coming one week after Apple seeded the first RC. The release candidate represents the final version iOS 26.2 that will be provided to the public if no further bugs are found. Registered developers and public beta testers can download the betas from the Settings app on...
iPhone 17 Pro Cosmic Orange

10 Reasons to Wait for Next Year's iPhone 18 Pro

Monday December 1, 2025 2:40 am PST by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models at the same time, which is why we often get rumored features months ahead of launch. The iPhone 18 series is no different, and we already have a good idea of what to expect for the iPhone 18 Pro and iPhone 18 Pro Max. One thing worth...
Johny Srouji

Apple's Chipmaking Chief Johny Srouji Responds to Report About Him Potentially Leaving

Monday December 8, 2025 9:23 am PST by
Apple's chipmaking chief Johny Srouji has reportedly indicated that he plans to continue working for the company for the foreseeable future. "I love my team, and I love my job at Apple, and I don't plan on leaving anytime soon," said Srouji, in a memo obtained by Bloomberg's Mark Gurman. Here is Srouji's full memo, as shared by Bloomberg:I know you've been reading all kind of rumors and...
iOS 26

iOS 26.2 Coming Soon With These 8 New Features on Your iPhone

Thursday December 11, 2025 8:49 am PST by
Apple seeded the second iOS 26.2 Release Candidate to developers earlier this week, meaning the update will be released to the general public very soon. Apple confirmed iOS 26.2 would be released in December, but it did not provide a specific date. We expect the update to be released by early next week. iOS 26.2 includes a handful of new features and changes on the iPhone, such as a new...
google pixel 10

Switching Between iPhone and Android Will Get Easier With New Apple and Google Collaboration

Monday December 8, 2025 11:10 am PST by
Apple and Google are teaming up to make it easier for users to switch between iPhone and Android smartphones, according to 9to5Google. There is a new Android Canary build available today that simplifies data transfer between two smartphones, and Apple is going to implement the functionality in an upcoming iOS 26 beta. Apple already has a Move to iOS app for transferring data from an Android...
ipad blue prime day

iPad 12 Rumored to Get iPhone 17's A19 Chip, Breaking Apple Tradition

Wednesday December 10, 2025 12:22 pm PST by
The next-generation low-cost iPad will use Apple's A19 chip, according to a report from Macworld. Macworld claims to have seen an "internal Apple code document" with information about the 2026 iPad lineup. Prior documentation discovered by MacRumors suggested that the iPad 12 would be equipped with an A18 chip, not an A19 chip. The A19 chip was just released this year in the iPhone 17, and...

Top Rated Comments

swrobel Avatar
10 months ago
No idea why this requires an iOS update to enable, but here we are...
Score: 8 Votes (Like | Disagree)
coolfactor Avatar
10 months ago

It makes me feel like maybe I’m not alone see how many issues other people are having using RCS. Group chats with android users keep splitting for me, I have 3 of the same group chat split out and random people responding to each one. It’s been a mess so far. Definitely was one of the biggest features I was looking forward to on iOS 18.
Now you can see why Apple proceeded cautiously with implementing RCS support. The protocol is a mess. Hopefully Apple's involvement will bring improvements.
Score: 6 Votes (Like | Disagree)
sw1tcher Avatar
10 months ago
iOS 18.4 Brings RCS Support to Google Fi, Mint Mobile and Other T-Mobile MVNOs

After installing iOS 18.4, iPhone users with Mint Mobile, Google Fi, Ultra Mobile, Tello, and US Mobile are able to toggle on RCS messaging, and the functionality appears to be rolling out for all T-Mobile Mobile Virtual Network Operators (MVNOs).

It appears that RCS access is only available for those running the second iOS 18.4 developer beta, not the public beta.
This isn't new. I have Mint Mobile and I already have RCS toggled on with iOS 18.3.1
Score: 5 Votes (Like | Disagree)
mazz0 Avatar
10 months ago
Why would this be tied to OS versions? RCS is standard, doesn’t seem to make sense that Apple would need to make network-specific OS changes.
Score: 4 Votes (Like | Disagree)
segfaultdotorg Avatar
10 months ago
Tim Apple,

Please make the RCS messages blue, or we'll sue for discrimination because minorities are more likely to have an Android device.

Sincerely,
America's Class Action Attorneys (TM)
Score: 4 Votes (Like | Disagree)
applefan8254 Avatar
10 months ago

Wouldn't that be nice! I mean were SIM cards THAT bad?
Yes please. I don't mind the idea of esims per se. I just wish hot swapping was more normalized. Apple has a built in method to do it for some carriers, but I wish it would come to all (especially mint please ?)
Score: 3 Votes (Like | Disagree)