> There are big places where its market share exceeds that of SMS
The "market share" of SMS is the entire world. SMS works with anything from a $15 Shenzen dumb-phone to a $1k iPhone 7+. Not to mention that unlike WhatsApp, which is forbidden to do business with countries like Iran (due to US export regulations), SMSing works with any country in the world except North Korea.
The "market share" of SMS is the entire world. SMS works with anything from a $15 Shenzen dumb-phone to a $1k iPhone 7+. Not to mention that unlike WhatsApp, which is forbidden to do business with countries like Iran (due to US export regulations), SMSing works with any country in the world except North Korea.