Librem 5 – A Security and Privacy Focused Phone – Purism

Why not use Wire, Telegram, WhatsApp, or Signal?

While these all provide encryption, and some do release the client software under acceptable licensing terms, they all are walled gardens wanting you to register with them, and their server software is proprietary and therefore not acceptable to us. Matrix is the proper solution and that is why we have partnered with them.

Sorgente: Librem 5 – A Security and Privacy Focused Phone – Purism

Ok, they explain very well the doubts I have about Telegram and Signal.