Do you know of a reliable (and preferably simple) method to record audio calls made using whatsapp on android phones ?
The method should record both correspondents, not just the voice of the local phone user. Permission to record the voice of the remote correspondent would be asked before recording, of course. The goal is to record an interview, where the would-be-interviewed person proposed to use whatsapp.
I've tried a few apps so far, but they seemed to record only the voice of the local phone user, or worked with normal phone calls, but not whatsapp calls. I'm not sure why.