> no ability to send/receive messages without being tethered to the phone (to be fair, Signal and WhatsApp also have this problem) Signal actually has a deskto

> no ability to send/receive messages without being tethered to the phone (to be fair, Signal and WhatsApp also have this problem) Signal actually has a desktop app. It requires having installed signal on a phone before, and linking the accounts, but it doesn't depend on the phone after that I believe. As for SMS, it works on pretty much any device and network, with the caveats that it's the first and lowest common denominator messaging service.