What price privacy? End-to-end encrypted (E2EE) messaging app Signal has put out an interesting overview of the costs required to develop and maintain its End-to-end encrypted messaging app Signal has put out an interesting overview of the costs required to develop and maintain its pro-privacy systems.
If you were using Signal just for SMS, none of your messages were secure anyway since the SMS protocol itself is not–defeating the purpose of signal. And if you had already convinced people to install Signal by using SMS as a caveat, you can just continue contacting them through the app.
I was able to convince pretty much everyone who matter in my life to install Signal and they all love it because WhatsApp has become too cluttered and spammy.