Originally Answered: Question about online poker.?
Yup, those are totally allowed. They are not prohibited nor are they considered cheating. In fact,a lot of poker rooms promote that kind of software, or even offer their own RIGHT on the site. Why more people don't take advantage I have no idea. In truth, it's not really even a cheat, just an assistant for novices or those whose math isn't that quick (after all, you don't have as much time to add up probabilities online as you do in live games).
I use poker office, which doesn't calculate your odds of winning, but it calculates pot odds and odds of improving your hand, plus it ranks your current hand against other possible hands (thus the second best full house would be ranked 2, only beatable by a four of a kind) and keeps track of your opponents and how they have played.
Another thing you can do on many online poker rooms which is actually cheating, in a sense, is look at your opponents hands after they have won, even if they choose not to show their cards. Just request a hand history and you will be show every winning hand that was dealt. You can learn how your opponents play from this. It's a useful feature which I am personally against, but if it's there, might as well use it.