As described above, most of these tools demand payment—typically $29.99—for a "product key." After payment, they reveal nothing more than passwords already stored on your own machine. You have paid for something you could have done yourself for free.
To understand why "Facebook Hacker Pro" is a scam, it helps to understand how modern web security functions.
Before you click any download buttons or install this software, you need to know the reality of what this file actually does. What is Facebook Hacker Pro v116exe?