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...

We estimate that by 2025, Signal will require approximately $50 million dollars a year to operate—and this is very lean compared to other popular messaging apps that don’t respect your privacy.

  • fer0n@lemm.eeOP
    5·
    10 months ago

    Wouldn’t you still need a server in between to temporarily store the messages if the other person isn’t available?

      • fer0n@lemm.eeOP
        11·
        10 months ago

        Wouldn’t that mean both have to have a connection at the same time? What if one is offline?

        • helenslunch@feddit.nl
          2·
          10 months ago

          Wouldn’t that mean both have to have a connection at the same time?

          Yes.

          What if one is offline?

          How do you think you’re going to receive messages offline?

          How much time does your phone spend offline?

          One device can send a receipt when received. If the other device doesn’t receive that receipt it can just keep pinging periodically until it receives it.

          You can also just hook up any old phone or computer, install the app, and let it run as the server.

          For more info on how this currently works you can check out Keet.io