I don't think this application is particularly helpful if you're looking for it to tell you about yourself.
I feel PalmReader is much more useful as a tool for those who want to know a little about reading palms ourselves. Granted, this not a 101, but it does give you a feel for the placement and look of each line and mount, as well as several variations of what most of these look like. It won't show you every variation (of course), but it gave me enough of a feel that, if I looked at someone's palm, I could probably place them at or in-between one dominant pattern or pair of patterns, and get an idea of what that meant from there.
As for the meanings that are provided, I didn't think anything much of them. Overall, though, that wasn't what I ended up needing from PalmReader, so I didn't much care.