I don't actually think this is true. Is there any verification that most iOS users do not have a single one of the most popular messaging apps in the world?
I never said they don't have anything but if you ask someone to download an app specifically to contact you they're going to be very bothered by it. It's like how as streaming services proliferate there are only so many services people actually want to subscribe to, or how pre-unlimited calling people were very judicious about calling people not on their network.
Anecdotally, in my social group:
- Snap: withering on the vine.
- Messenger: generally declining with the declining popularity of Facebook in my age cohort
- Instagram: everyone has it, but messaging is definitely a second class part of the app and no one really uses it other than to send instagram memes
- GroupMe: I downloaded it once for one person, most of the people in the chat have iPhones anyways, and people don't really use it other than to contact the non-Apple users specifically.
Well, here's an anecdote for you. I am a US iPhone user and I use zero third party messaging apps. I know of no one in my friend circle who has an iPhone and uses a third party messaging app.
