@k @andrewwet @dansup Signal's encryption is technically superior and has PFS. It's not clear that it really matters though as PGP crypto is not stuck in the 1990s unless you NEED backwards compatibility with 1990s clients.

Also it supports multi-device. Just scan a QR code with your other client and poof there it is.

Sign up to a server instantly? Scan the QR code (random username/password generated for you)

Join a group chat? Scan a QR code.

It's great. I have a self-hosted server without federation so it's extra private for my use case. Ping me if you want to try it, Delta Chat has a very slick onboarding process.