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by mantap 2019 days ago
A lot more than with SMS. You can send someone an SMS but they are not going to respond because either they cost money or they have some tiny allowance of them.
3 comments

Where I live mobile plans include unlimited SMS.

Also I have a dumbphone and I am the only person my friend send SMS too. That makes me quite a unique person !

The point is that the penetration of WhatsApp is way higher than the penetration of unlimited SMS plans. So whatsapp has broader reach.

SMS only works if you live in a region where unlimited SMS plans are standard AND you don't have any friends outside of that region OR WhatsApp doesn't have market share there. Basically only US.

Or they know that responding via SMS only encourages the use of a messaging system whose time has past.
What is the limit of SMS allowance on your network?
There are cheap postpaid packages with only data (a lot, >10 GB) and ~100 minutes, SMS is paid per message.