before answering, i'd like to preface that i personally don't take in consideration the number of users when analyzing the value of a tool, as 100% of my friends can reach me via sms.

i'm not going into the technical details of why signal is more secure than anything else in our age (i invite you to make your own way into their blog https://signal.org/blog) the striking thing about people working on signal is their intention; the tool is completely open-source, the foundation is a non-profit based on donations. we're seeing what happens when durov's money starts to run out: how long will his ads strategy last, before he needs to invent another trick to keep the boat afloat?