Smart AudioBook Player is a highly-rated Android app for managing local audiobooks, featuring independent progress tracking, a shake-to-pause sleep timer, and variable speed playback. While offering a 30-day trial of premium features, the full version requires a one-time purchase, and users are advised to avoid "unlocked" APKs due to security risks, opting instead for official versions from the Google Play Store . Smart AudioBook Player - Apps on Google Play
