Any chance of adding the following:

(a) Back feature: To return to the previous screen. An example of where this would be useful is when you go to the select passage screen. If you select the Book you go to the chapter select screen. However, if you mistakenly press the wrong chapter you need to start the process all over again. Would be nice to just press back which would take you back to the chapter select screen.

(b) Next and previous chapter icons. Can be a mild annoyance having to go through the book and chapter selection process when the chapter you want is just 1 or 2 chapters away. I know you can scroll up or down to other chapters but not quite as intuitive and you may not know how long the chapter you are in is.