Good free encrypted text messaging app for iphone?

Thought about using "Signal" just wanted some input & if anyone could recommend a good app.

Also if you know of a good alternative to skype for desktops that isn't browser based like Mega.

I know it's owned by Facebook, but Whatsapp is good. It uses end-to-end encryption.

They didn't do so well on the recent EFF report, though.

Signal is the best option.