In our office, everyone has a private computer but I am noticing that it may be used by someone else after I go home.So I need a type of remote spy software to monitor my business computer. I know there are many choices for remote spy in the market, like keylogger, remote pc monitor and the web filter , and it difficult to tell which one works best. Some acquaintances recommended me this keylogger for Mac, but I have no idea about it. Can anyone give me your other suggestions? Both free or purchased ones will be OK. Better for free