Variable speed (0.5x to 3.5x), noise reduction, and equalizer.
Sleep timer with a "shake-to-reset" feature if you fall asleep. Smart-AudioBook-Player-v6-3-7-APK--Unlocked----AbbasPC
Independent progress saving for every book, support for covers, and character lists. Variable speed (0
The current official version is v11.7.x , making v6.3.7 extremely obsolete. Key Features: Variable speed (0.5x to 3.5x)
Modified APKs from unofficial sources often bypass the developer's licensing to provide "Pro" features for free. Using these versions is risky for several reasons: Smart AudioBook Player v6.3.7 APK (Unlocked) - AbbasPC