I only have the Standard, not Plus or Tutor modes of Lynx AI.
I have found a way to speak with it, although I don’t know if this is the intended usage…on Android keyboard there is (maybe dependent on a setting?) a microphone symbol. I am studying Russian, so I switch to the Russian keyboard, press the microphone key and my speech is interpreted to Russian text into the Lynx AI entry field.
This method doesn’t support natural conversations as much as, say, ChatGPT Advanced Voice, but I find it quite useful.