[kgersen]

But seen from Europe, your 'western world' = mainly USA ...

which "existing western chat and social media" aren't from the US ?

[cwhiz]

Telegram and Kik, to name a couple off the top of my head.

There is far more to this than just social media and chat.

[bjo590]

kik is from Canada, but I couldn't find a European example I would consider popular.

[rrrazdan]

Telegram. Now taking off in India as well.

[coffeemug]

Viber

[bjo590]

Isn't Viber a Japanese company owned by Rakuten?