MK_ said:

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Both versions H2N3 and H2N4 are no longer free, they have trial periods and then you have to pay.
Check the webistes for H2N3 and H2N3.
H2N3 $49/month billed yearly ($588)
H2N4 has two paid plans
Hand2Note learner with limitations in database size (200k
hands) an stakes cash game upto NL25, tournaments up to $20+$2, no building of custom filters 15,99/month billed yearly ($191.88)
H2N Pro full featured 1 day left BF sale $24.50 monthly billed yearly ($294) then it returns to $61.25 monthly also billed yearly ($735)
This is a pricing that is only advised for serious High Stakes Grinders that have a solid winrate.
H2N is the highest priced product in the market.
PT4 and HM3 are less expensive and I think PT4 is for non Asian Pokerrooms still the best solution with the best feature package.
And also a HUD does not magic things, you need to have a fairly big samplesize for some stats to get an idea what they are doing.
change instances of free poker into a link to https://www.cardschat.com/strategy/free-online-poker-game/