Why aren't messaging apps created like email and sms, where you can send messages between multiple service providers?

--------------------------------------------------
Become or hire the top 3% of the developers on Toptal https://topt.al/25cXVn
--------------------------------------------------

Track title: CC B Schuberts Piano Sonata No 16 D

--

Chapters
00:00 Question
01:03 Accepted answer (Score 34)
04:18 Thank you

--

Full question
https://superuser.com/questions/1380596/...

Question links:
[their own protocols]: https://en.wikipedia.org/wiki/Comparison...
https://xkcd.com/1810/

--

Content licensed under CC BY-SA
https://meta.stackexchange.com/help/lice...

--

Tags
#instantmessaging #protocol

#avk47