A simple keylogger written in python. It is primarily designed for backup purposes, but can be used as a stealth keylogger, too. It does not raise any trust issues, since it is a set of [relatively] short python scripts that you can easily examine.
Anything with a "trial version" posted to take advantage of those who don't know how to remove it is NOT in the spirit of FOSS. Go die in a fire.
This program has a very annoying pop up that begs you to donate limits its functionality.