: Version 3.1.9 is the last stable build officially supporting Android 4.4. It is highly customizable and supports external TrueType/OpenType fonts.
: Adjust the screen backlight instantly by sliding your finger up or down along the left edge of the screen—perfect for switching between day and night reading. Recommended Apps for Android 4.4.2 : Version 3
Since modern versions of many apps require Android 5.0+, you should look for specific legacy versions: : Version 3
: Sync your library, reading positions, and bookmarks across multiple devices using Google Drive™-based storage. : Version 3