You need a keylogger for Mac?search on the Internet, you can find many, such as anykeylogger(www.anykeylogger.com), refog(www.refog.com), amac keylogger````You can download the trial version to test them first.
I used anykeylogger for mac on my Mac book for half a year, not very well but can meet my requirements and cheap enough. Click the link to have a look.
Well, I know Micro Keylogger http://www.remotespy.co/pc-keylogger.html which can be used to record keystrokes and everything you typed. You can have a look.
Why don’t you try Aobo Keylogger? http://goo.gl/Q2rqqV I am using it and it can track what you type. It doesn’t appear anything wrong until now. If you find this doesn’t work, you can find others.