Alternative to shared object to save large number of variables for iOS app

I am working on a puzzle app for iOS devices and am looking for an alternative option to shared objects as I wish to have the values of a large number of variables (over 100 per puzzle) saved locally so that the puzzles will be in the same spot when the user opens the app.     If anyone can suggest the best alternative to try and also if you have a link to a tutorial or code that would be great.   I have no experience with mysql or databases so am after the simplest possible method.