5+ years ago Whatsapp was pretty much the standard for all my network (apart from my US colleagues still using SMS a lot). But over the last 5 years its fragmen

5+ years ago Whatsapp was pretty much the standard for all my network (apart from my US colleagues still using SMS a lot). But over the last 5 years its fragmented a LOT. I often have conversations with same friends across >1 messaging app.