First of all I'm not sure if this is even allowed to be discussed. If not, I'm sorry, please close it.
A family member recently went though some issues with their significant other. Part of the healing therapy was to install a keylogger on their computer for transparency between the couple to regrow trust. They came to me since I'm the "techy" guy in the family but quite frankly I've never had any experience with a keylogger. Are there legit keylogger programs?
Also, this is purely a technical questions. I'd rather not get into whether the therapy is correct or not.