"C. There's also some Objective-C for macOS UI."
> Second, it's not open source, and I'm not sure I'm comfortable trusting such an app with my login credentials.
"eul doesn't ask for your passwords and doesn't store them anywhere. Authentication is performed in a browser directly on the messenger's website."
> What language is eul written in?
> C. There's also some Objective-C for macOS UI.