> This network effect is particularly strong with messengers like Apple Messages (formerly known as iMessage) and, especially in the global south, as well as underdeveloped regions, WhatsApp.

WhatsApp is extremely popular in many European countries, too.

Offtopic:

Btw. cool domain! I have heard about non latin domains, just never seen one in the wild. Now I have to read again, how the non latin scripts are displayed with latin :D

Related:

Molly: An Improved Signal App

https://news.ycombinator.com/item?id=46080916

true i love Molly

and nice name, reminded me of the song "please help me find Molly" way back

What about Session?