FBReader

There are lots of eBook readers available for the Android platform, which means that there is a great competition between all of the solutions provides for users. FBReader aims to be the best application being offered, with numerous features and support for all of the major formats.
The application also comes with support for synchronization across multiple platforms, and it’s powered by Google Drive, but it has to be enabled from the settings. Also, the application is highly customizable, and it makes use of external TrueType/OpenType fonts and custom backgrounds.
The screen brightness can be adjusted for an easier reading experience, and various color schemes can be selected. It’s also possible to access various network ebook catalogs and stores from all over the world.