(Download and unZip Password is: amkpro )
Unzip “amac-keylogger-pro.zip” with the password in your order email and double click "amac-keylogger-pro.dmg"
Hold on Control and click on “Installer-Run-me-first.command“, select "Open"
If it doesn’t open it, try to allow anywhere in System Preferences > Security & Privacy > General
Press hot key "Control+Option+M"
Always use the hotkey to bring it up when it hides itself.
Now it starts logging keystrokes, check the guide to configure it.