IPhone conversation recording?

I know there's a superman nerd out there who can answer this.

So I want all my incoming and outgoing phone conversations to be recorded AUTOMATICALLY, every time, and without the knowledge or consent of the other party. Yes, that means I don't want the other person to hear any sort of message saying that the call is being recorded. This is 100% legal in Texas, and I have a good reason to be doing this. And, I want to be able to do this for free, or something very close to free.

There's no native call recording capability on the iPhone, for legal reasons (too many jurisdictions prohibit recording of calls, and Apple doesn't want to open that can of worms). There are many apps that will record calls, although none is perfect, mainly because the built-in security of the iPhone prevents just any old app from recording a call. Many of them (all?) send the recording or the call through an outside party for recording, so you have to keep the potential security issues of that in mind.

Android phones may provide a direct recording capability, depending on the version and vendor.