PokerTracker 4 includes the most advanced calculator built into a tracker. it includes custom range modeling (which no other calculator has at this time), the streets are automatically populated from the replayer, and if you play Omaha we have full range creation and range elimination - which makes it possible to create real-world omaha ranges. If you are a tournament player then you will be amazed to find that we include a full ICM simulation AND calculation suite of tools, thanks to our tournament detection engine we can determine most tournament payout structures which allows us to use this data to determine the ICM value of each chip, combined with all-in Equity, to create Net Adjusted Winnings. This is a new stat that shows how your all-in equity reflects your prize pool expectation, rather than your expectation in chips won or lost as found in All-in equity adjusted winnings (sometimes called all-in EV, but in reality this is not EV because it is a results based automated process instead of a range selection). We also include automated note tracking in our Mac version, and TableTracker which is a table finding solution.
As pocketehs pointed out, we do not support Zoom or Rush HUDs on the Mac version of PT4 because we do not have a good way of determining which players are in each seat. In Windows we were able to gain this information from the operating system, but the Mac OS does not permit us to work in the same way. We looked into OCR (Optical Character Recognition) but it was not reliable solution, there are too many opportunities for errors in the data to consider this a viable solution. I'm afraid as pocketehs said, you must play in a Windows VM if you intend to play Zoom or Rush tables. We do support OnGame's STROBE fast poker tables in OSX, so that is another option you could consider.
Think of our software as a suite of poker tools for the mac.