I don't know if it's in the Play Store but you can download the APK directly from GitHub: https://github.com/koreader/koreader/releases https://github.com/korea

I don't know if it's in the Play Store but you can download the APK directly from GitHub: https://github.com/koreader/koreader/releases https://github.com/koreader/koreader/releases Although Koreader has been originally developed for e-ink devices. I'm not sure how well it has been optimized for normal tablet screens.