Prove this, because I'm pretty certain this is not the case. I helped build a messaging app for iOS (Technically a TeleHeath app that needed to accept MMS/SMS also) and I saw absolutely none of this. That was a few years ago so it's possible it's changed but I'd have to see actual documentation for that. Otherwise I firmly believe this is BS and completely made up.
Prove this, because I'm pretty certain this is not the case. I helped build a messaging app for iOS (Technically a TeleHeath app that needed to accept MMS/SMS also) and I saw absolutely none of this. That was a few years ago so it's possible it's changed but I'd have to see actual documentation for that. Otherwise I firmly believe this is BS and completely made up.
https://videoconverter.wondershare.com/compress/mms-video-si....
I’m curious how you did that, given that iOS doesn’t allow 3rd-party SMS/MMS apps.
No, they don't.