What's the best Android app for listening to audiobooks but also seeing the text to help me stay focused?

Google Play Books & Audiobooks is well-suited for users who want to combine audiobook listening with visual text reading. The app's core feature is its seamless synchronization between purchased audiobooks and their corresponding ebook versions. This allows a listener to start an audiobook during a commute and later pick up reading the exact same spot in the text on a tablet at home, without losing their place. For following along in real-time, the app can highlight words as they are narrated, which can aid comprehension and focus. This is particularly useful for dense non-fiction, language learning, or for readers who find their mind wanders with audio-only content. However, it's important to note that this sync feature requires owning both the audiobook and ebook formats of the same title, which isn't always available or economical. Furthermore, while the app supports customizable text size and background for reading, some user reviews indicate a desire for proper subtitles or a constant transcript display for audiobooks, which isn't currently a native feature. The app's library is extensive, but its utility for this specific use case depends heavily on the publisher offering Whispersync-like functionality for the chosen book.