I have been looking for a fast offline bible with a Greek and Hebrew concordance. This is a good app in that regard. One thing that keeps me from fully endorsing it is the inability to search a word from the definition window. Its a hassle to have to back out of the definition window and manually type the ref# in the search section. The old "Strongs KJV" app used to be a great app that worked like this; as well as having a toolbar that made search history and passage history easily navigable. Unfortunately the creator overhauled the app and made it tougher to use and slower. Im still searching for an ideal app in this field. This one comes close.