You get 10 free captures on signup.
After that, plans vary from '$5 for 100 captures' to '$30 for 1000 captures'.
I added this to one of my websites. Holy Shit, it is good! I've bought 100 captures for now, for $5.
[I shamefully admit that this is one of the ideas I had but didn't execute all. These guys have done an amazing job.]
Thanks to paraschopra's comment, I checked out userfly too. I am going to try that too. Clixpy didn't detect keystrokes correctly on one of my websites. Lemme see how userfly fares for the same test case.
Note to self : Competition is good.
( Userfly dude rambles for quite a while in the demo :-) )
Notes on Userfly:
Userfly's performance can be better. Hmm. Definitely. But I like it too.
I wish Google released a product that has this functionality. I don't trust userfly or clixpy completely, since they didn't replay my test drive properly. But I'll definitely be using them until something more robust comes along.
Google already has a LOT of information about it's users. No more please