“What would it mean for your business if you could target potential clients who are actively discussing their need for your services in their day-to-day conversations? No, it's not a Black Mirror episode—it's Voice Data, and CMG has the capabilities to use it to your business advantage.”
Well, yes, but actually no. No idea how this might play out in other parts of the world than the US. But in most places, you’d usually need consent of all parties, that are involved. If my neighbor were to install an (infected) app like this, then carries his phone around and talks to me, I did not consent and it would be illegal to record me, even if he were not tricked into consenting, but did knowingly accept it. Worse yet, in the last scenario, he might be on the hook for legal consequences, too…
Besides that legal minefield, I thinks it’s a bluff. The tech is either way less accurate than they claim, or quite ressource intensive by either eating through your data plan on a mobile phone or draining your battery. My bet is on a PR stunt.