I love MyBibleTracker. It works simply and doesn’t have a bunch of unnecessary and complicated features to clutter it up. The UI is very clean and easy to use. I like that you can have multiple trackers to meet you goals. If I were to add anything it would be the ability to swipe left and right from within a book. For example, if I’ve tracked my reading in Psalms and want to move on to Proverbs, it would be nice to swipe to the left as if changing a page. Currently i would have go into Psalms, check off my reading, back out of Psalms, go into Proverbs, and then check off my reading. Not a big deal.