This is indeed how WA is being used. I have few friends with iphones here in Spain and of those all of them use WhatsApp. Not sure if they use iMessage with ot

This is indeed how WA is being used. I have few friends with iphones here in Spain and of those all of them use WhatsApp. Not sure if they use iMessage with other Apple users but nobody ever uses it to SMS me (and if they did I would tell them to use something secure) The main messaging apps in use here are WhatsApp (#1 by far), Telegram (used a lot for groups) and sometimes signal. I've never had a friend suggest something else like Google, iMessage or Facebook/Instagram. I'm not on any of those anyway (even though I have an Android phone I don't use a Google account with it).