Well, they have "business WhatsApp" and now the infrastructure is built out and the apps are mature, I really wonder how much investment it actually takes. What

Well, they have "business WhatsApp" and now the infrastructure is built out and the apps are mature, I really wonder how much investment it actually takes. WhatsApp was a famously lean operation. Maybe 50 people at the time it was acquired, and the apps have hardly changed in years. I bet it can or does run with a skeleton crew. The competition is hardly intense.