Reader 0.13.0

Reading a book on paper that you also have here? Photograph the page you are on, and Reader finds that passage and offers to move your place to it. The control is at the top of the screen while you read; it is not offered for PDFs yet.
It shows you what it found before it moves anything, with a little of what comes before and after, so you can hold it against the page in your hand. Once you go there, the passage is picked out on the page so you can see exactly where you have landed.
If the paper copy is a different translation, or the photograph came out badly, it tells you it could not find the place rather than guessing at one.
Moving your place this way never counts as reading you did not do — your time, streaks and finished books are left alone.