cupboardunderscore.github.io/ios-rcs/e2ee/

RCS is absolut bullshit. You take an „open standard“ and let 100 company’s implement a closed source solution for it that needs to be kept updated so that all features work across all platforms. Oh hey I want to write from TMobile to some cheap third party service, ups they don’t support it…. E2EE? Beta or not implemented. OpenSource apps are also rare.

And once again a chat protocol that Google touched and it was turned into golden shit. Congrats