re: Poker & Heads up Display
If you play on Carbon, their own HUD is a licensed copy of Hold'em Indicator which is a very limited (by comparison to PT/HM) but functional free HUD. Other than that, you really just need to buy PT or HM.
Originally Posted by AugustWest
If you want to try a open source HUD/Tracker:
Be aware though, it may take a bit of fiddling around to get it going!
A lot of fiddling actually. fpdb has been around for years but has never really been very usable. Unlike a lot of open-source software, it's nowhere near as functional and stable as it's commercial competitors. And I say that as a decades-long user, supporter, and contributor to OSS.
Since there is such a significant likelihood that a properly used tracker will increase your earnings, there's no reason not to spend what is really a pittance for PT or HM.