I'm looking for a statistic service that you can include in software clients not for mobile apps but PC/Mac?

I want to measure what features people use in my software. For this I could check everything on the server (while it's an IM client), but I want to do this client side. For Mobile application a company already exists doing this which is Flurry.com but I'm looking for someone who can do this for PC and Mac. Anyone know about such an app?