Bible Quizlet is a simple app for learning the order of the books of the Bible. There are 3 modes: Front to back, Back to Front, and Random. The game simply shows a blank and two surrounding books and shows 3 possible book names to fill the blank. Touching the wrong book name causes its button to disappear. Touching the correct button moves you on to the next question.
This is a very basic app but contains no ads and is free. Interest in this type of app will lead to improvements later on.