Hacker News Reader

And yet I can do it with SMS group messages on Android with Google's Messages app.

SMS group messages don't exist.

There's broadcast SMS (where the phone sends the same SMS to multiple people) and MMS groups.

Does MMS support naming groups?

Are you're sure that's not RCS?

To me it's just applicable from my end on the Android app. It explicitly says the other members don't see the group name.