Spotify’s Page Match syncs your audiobooks and your physical ones.

Point your camera at a page, and the Spotify app uses computer vision to match text with audio. If you have to jump behind the wheel for a long drive, but didn’t want to put down The Buffalo Hunter Hunter, you can just snap a pic to jump to the spot in the audiobook where you left off in the physical book.
It’s not unlike Amazon’s Whispersync for Voice, which lets you seamlessly jump back and forth between Kindle books and Audible audiobooks. . Spotify has launched a new feature called Page Match that lets you quickly sync your spot in a physical or ebook with an audiobook.