As the title says, has anyone tried the Mewing app? It's not by Mike or John Mew, but you can pay as little as $1/£1 for a trial. I'd like to know the thoughts of those on here who have more wisdom than me regarding Orthotropics and Myofunctional therapy. Is there a correct balance and variation of exercises? Maybe there isn't enough focus on other important aspects, I don't know.
I also see there is a 10% discount for the Jawliner, which according to them, has been approved by Mike Mew (well they said, he said it was 'good').