Well Worth the Money
an excellent app. An extensively hyperlinked NASB concordance (app contains the full NASB which one can use directly) makes it very easy to navigate to other passages that use the same word in which one is interested. As suggested by another reviewer I also bought John Gills commentary which plugs into the app (this can be bought from within the app). This commentary is verse by verse and displays next to the bible text (and smartly scrolls with it). The language can be difficult sometimes (being over a hundred years old, the phrasing is sometimes unfamiliar) but I still highly recommend it.
partialresponse about
Strong's Concordance with NASB