

If it’s “free” with a phone number and costs money to use another method (which is another form of PII) then the only explanation I can see is that having your phone number is worth at least $3 more to Signal than having your credit card number. Or maybe the fact that children can have a phone number but not a credit card and having information on kids is worth more to them.









I used it for a while and even got some friends to use it but since they all used whatsapp already they drifted back to that.