I wish to find out how one can find out the content of an app , for example. Crossword Solver, what is the contents and extent of the information contained
You can look at all the info on the App store listing and this should give you a fair idea of what it contains. We have a lot of apps that get discussed here and this may give you additional info on how good an app is. As for this particular app, I haven't seen it mentioned at all here but that's not to say someone hasn't discussed it.
The IPad Forum is a community of members from all walks of life and from all over the world coming together to share our experiences and to help each other learn about this wonderful piece of technology the Ipad. There is a wealth of information already here in the many threads we have so doing some searches will answer most of the questions you have. If then you cannot find the answer you are seeking then by all means post your question. There are many friendly and informed members here only too willing to help you.