The Foundry sells their Camera Tracker plug-in. Details are here:
This plug-in is very different from mocha-AE and mocha Pro. Details of those pieces of software are on the Imagineer site:
Every tracker I have ever used handles different problems in a different way. Some shots work better in one tracker, others work better in others. Recently I have been spending several days using Syntheyes to reproduce the geometry inside a shot and build texture maps. A couple of weeks ago I spent several days using the built in Camera tracker because for the type of shot I was working on and the design, camera tracker worked better. Some of the shots in that project required some screen replacement. For a few of those shots I used AE's corner pin tracking, for others I used Mocha. My point is that different trackers are at better at different tasks than others. There is no one size fits all tracker.
Thank you very much, I think I am going to start with mocha 3 for now.