Signal is the world’s most widely used truly private messaging app, and our cryptographic technologies provide extra layers of privacy beyond the Signal app itself. Since launching in 2013, the Signal Protocol—our end-to-end encryption technology—has become the de facto standard for private commu...
For the current distribution I quote from the linked source :
Current Infrastructure Costs (as of November 2023): Approximately $14 million dollars per year.
Also from the source:
Yes, but I was talking about the salary part, which is separate from the costs you mentioned.
It’s 19 million just for people.