I prefer SoapMaker 3 and since I have bought it I haven't looked back. There are a few things I like about it, but there are still some oils that will fool it too. For instance Olive Oil ends up as a very hard bar of soap and castor adds a lot of lather, more than calculators show.
Another thing I like about it is that I can do liquid, hard and cream soap calculations plus I can also formulate my lotions, creams, and other body products right there. It will also store your recipe for future reference and you can add a picture to the batch file.
Did I happen to mention I love this program? :wink: