Same with WhatsApp. It would be impossible for me to have a social life without WhatsApp. It covers so many groups. I managed to get some groups of technical f

Same with WhatsApp. It would be impossible for me to have a social life without WhatsApp. It covers so many groups. I managed to get some groups of technical friends to move to other products but I don't think that would be possible with other people. WhatsApp is not just the default group messaging app.... I don't think non-technical people could even name another. Maybe iMessage? But that's only for small and more affluent friendship groups. I don't think anybody would ever have an iMessage group for an apartment building or amateur sports team. It wouldn't even cross anyones mind to use it.