Wattpad (Free books - Wattpad) is an app that lets you download and read millions of different books on your mobile phone or Android tablet (in this case a tablet is of course preferable).
The app comes with a library that includes over 10 million free books. Some of the best Sci-Fi, fantasy, mystery, suspense and romance books can be found on its virtual stands. Hunger Games, Paulo Coelho's short stories, or the complete works of Margaret Atwood are only some of the books you can download.
The app lets you read the books without having to be connected to the internet, as well as letting you set your own reading options from among several different options available, such as the text's font, and other such parameters.
The best part is that you can synch your Wattpad apps so that you can read on your tablet, cellphone, or even the website itself. This basically means you can use your own user account as a bookmark.